diff --git a/ChangeLog.md b/ChangeLog.md
index 4100f9b1..c7ddf17b 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,6 @@
+#2.3.6
+  * Update miner role to provide better defaults
+
 #2.3.5
   * Ensure that hidden blueprint effects are applied when a blueprint is selected
   * Handle display when summary values show thrusters disabled but current mass keeps them enabled
diff --git a/src/app/components/SlotSection.jsx b/src/app/components/SlotSection.jsx
index e6f75da4..41dff6e3 100644
--- a/src/app/components/SlotSection.jsx
+++ b/src/app/components/SlotSection.jsx
@@ -15,6 +15,8 @@ export default class SlotSection extends TranslatedComponent {
   static propTypes = {
     ship: PropTypes.object.isRequired,
     onChange: PropTypes.func.isRequired,
+    onCargoChange: PropTypes.func.isRequired,
+    onFuelChange: PropTypes.func.isRequired,
     code: PropTypes.string.isRequired,
     togglePwr: PropTypes.func
   };
diff --git a/src/app/components/StandardSlotSection.jsx b/src/app/components/StandardSlotSection.jsx
index 30b4ff66..cba5511f 100644
--- a/src/app/components/StandardSlotSection.jsx
+++ b/src/app/components/StandardSlotSection.jsx
@@ -28,6 +28,8 @@ export default class StandardSlotSection extends SlotSection {
   _optimizeStandard() {
     this.props.ship.useLightestStandard();
     this.props.onChange();
+    this.props.onCargoChange(this.props.ship.cargoCapacity);
+    this.props.onFuelChange(this.props.ship.fuelCapacity);
     this._close();
   }
 
@@ -39,6 +41,8 @@ export default class StandardSlotSection extends SlotSection {
   _multiPurpose(shielded, bulkheadIndex) {
     ShipRoles.multiPurpose(this.props.ship, shielded, bulkheadIndex);
     this.props.onChange();
+    this.props.onCargoChange(this.props.ship.cargoCapacity);
+    this.props.onFuelChange(this.props.ship.fuelCapacity);
     this._close();
   }
 
@@ -49,6 +53,8 @@ export default class StandardSlotSection extends SlotSection {
   _optimizeCargo(shielded) {
     ShipRoles.trader(this.props.ship, shielded);
     this.props.onChange();
+    this.props.onCargoChange(this.props.ship.cargoCapacity);
+    this.props.onFuelChange(this.props.ship.fuelCapacity);
     this._close();
   }
 
@@ -59,6 +65,8 @@ export default class StandardSlotSection extends SlotSection {
   _optimizeMiner(shielded) {
     ShipRoles.miner(this.props.ship, shielded);
     this.props.onChange();
+    this.props.onCargoChange(this.props.ship.cargoCapacity);
+    this.props.onFuelChange(this.props.ship.fuelCapacity);
     this._close();
   }
 
@@ -69,6 +77,8 @@ export default class StandardSlotSection extends SlotSection {
   _optimizeExplorer(planetary) {
     ShipRoles.explorer(this.props.ship, planetary);
     this.props.onChange();
+    this.props.onCargoChange(this.props.ship.cargoCapacity);
+    this.props.onFuelChange(this.props.ship.fuelCapacity);
     this._close();
   }
 
@@ -78,6 +88,8 @@ export default class StandardSlotSection extends SlotSection {
   _optimizeRacer() {
     ShipRoles.racer(this.props.ship);
     this.props.onChange();
+    this.props.onCargoChange(this.props.ship.cargoCapacity);
+    this.props.onFuelChange(this.props.ship.fuelCapacity);
     this._close();
   }
 
diff --git a/src/app/pages/OutfittingPage.jsx b/src/app/pages/OutfittingPage.jsx
index f61df22c..17af3290 100644
--- a/src/app/pages/OutfittingPage.jsx
+++ b/src/app/pages/OutfittingPage.jsx
@@ -446,7 +446,10 @@ export default class OutfittingPage extends Page {
       fuel = ship.fuelCapacity;
     }
     const code = this._fullCode(ship, fuel, cargo);
-    this.setState({ code, cargo, fuel }, () => this._updateRoute(shipId, buildName, code));
+    // Only update the state if this really has been updated
+    if (this.state.code != code || this.state.cargo != cargo || this.state.fuel != fuel) {
+      this.setState({ code, cargo, fuel }, () => this._updateRoute(shipId, buildName, code));
+    }
   }
 
   /**
@@ -551,7 +554,7 @@ export default class OutfittingPage extends Page {
     const internalSlotMarker = `${ship.name}${_iStr}${_pStr}${_mStr}`;
     const hardpointsSlotMarker = `${ship.name}${_hStr}${_pStr}${_mStr}`;
     const boostMarker = `${ship.canBoost(cargo, fuel)}`;
-    const shipSummaryMarker = `${ship.name}${_sStr}${_iStr}${_hStr}${_pStr}${_mStr}${ship.ladenMass}${ship.cargo}${ship.fuel}`;
+    const shipSummaryMarker = `${ship.name}${_sStr}${_iStr}${_hStr}${_pStr}${_mStr}${ship.ladenMass}${cargo}${fuel}`;
 
     return (
       <div id='outfit' className={'page'} style={{ fontSize: (sizeRatio * 0.9) + 'em' }}>
@@ -588,10 +591,10 @@ export default class OutfittingPage extends Page {
 
         {/* Main tables */}
         <ShipSummaryTable ship={ship} fuel={fuel} cargo={cargo} marker={shipSummaryMarker} />
-        <StandardSlotSection ship={ship} fuel={fuel} cargo={cargo} code={standardSlotMarker} onChange={shipUpdated} currentMenu={menu} />
-        <InternalSlotSection ship={ship} code={internalSlotMarker} onChange={shipUpdated} currentMenu={menu} />
-        <HardpointSlotSection ship={ship} code={hardpointsSlotMarker} onChange={shipUpdated} currentMenu={menu} />
-        <UtilitySlotSection ship={ship} code={hardpointsSlotMarker} onChange={shipUpdated} currentMenu={menu} />
+        <StandardSlotSection ship={ship} fuel={fuel} cargo={cargo} code={standardSlotMarker} onChange={shipUpdated} onCargoChange={this._cargoUpdated} onFuelChange={this._fuelUpdated} currentMenu={menu} />
+        <InternalSlotSection ship={ship} code={internalSlotMarker} onChange={shipUpdated} onCargoChange={this._cargoUpdated} onFuelChange={this._fuelUpdated} currentMenu={menu} />
+        <HardpointSlotSection ship={ship} code={hardpointsSlotMarker} onChange={shipUpdated} onCargoChange={this._cargoUpdated} onFuelChange={this._fuelUpdated} currentMenu={menu} />
+        <UtilitySlotSection ship={ship} code={hardpointsSlotMarker} onChange={shipUpdated} onCargoChange={this._cargoUpdated} onFuelChange={this._fuelUpdated} currentMenu={menu} />
 
         {/* Control of ship and opponent */}
         <div className='group quarter'>
diff --git a/src/app/shipyard/ModuleSet.js b/src/app/shipyard/ModuleSet.js
index 211df63f..d1bc3c90 100755
--- a/src/app/shipyard/ModuleSet.js
+++ b/src/app/shipyard/ModuleSet.js
@@ -132,6 +132,20 @@ export default class ModuleSet {
     return new Module({ template: pd });
   };
 
+  /** Find the power distributor that matches the requirements
+   * @param  {Object} requirements The requirements to be met (currently only support 'weprate')
+   * @return {Object}              Power distributor
+   */
+  matchingPowerDist(requirements) {
+    let pd = this.standard[4][0];
+    for (let p of this.standard[4]) {
+      if (p.weprate >= requirements.weprate || p.weprate >= pd.weprate) {
+        pd = p;
+      }
+    }
+    return new Module({ template: pd });
+  }
+
   /**
    * Finds the lightest Thruster that can handle the specified tonnage
    * @param  {number} ladenMass Ship laden mass (mass + cargo + fuel)
diff --git a/src/app/shipyard/ShipRoles.js b/src/app/shipyard/ShipRoles.js
index 84b15f55..73fb132f 100644
--- a/src/app/shipyard/ShipRoles.js
+++ b/src/app/shipyard/ShipRoles.js
@@ -252,24 +252,6 @@ export function miner(ship, shielded) {
     }
   }
 
-  // Collector limpet controller if there are enough internals left
-  let collectorLimpetsRequired = Math.max(ship.internal.filter(a => (!a.eligible) || a.eligible.cr).length - 6, 0);
-  if (collectorLimpetsRequired > 0) {
-    const collectorOrder = [1, 2, 3, 4, 5, 6, 7, 8];
-    const collectorInternals = ship.internal.filter(a => usedSlots.indexOf(a) == -1)
-                                            .filter(a => (!a.eligible) || a.eligible.cc)
-                                            .sort((a,b) => collectorOrder.indexOf(a.maxClass) - collectorOrder.indexOf(b.maxClass));
-    for (let i = 0; i < collectorInternals.length && collectorLimpetsRequired > 0; i++) {
-      if (canMount(ship, collectorInternals[i], 'cc')) {
-        // Collector only has odd classes
-        const collectorClass = collectorInternals[i].maxClass % 2 === 0 ? collectorInternals[i].maxClass - 1 : collectorInternals[i].maxClass;
-        ship.use(collectorInternals[i], ModuleUtils.findInternal('cc', collectorClass, 'A'));
-        usedSlots.push(collectorInternals[i]);
-        collectorLimpetsRequired -= collectorInternals[i].m.maximum;
-      }
-    }
-  }
-
   // Dual mining lasers of highest possible class; remove anything else
   const miningLaserOrder = [2, 3, 4, 1, 0];
   const miningLaserHardpoints = ship.hardpoints.concat().sort(function(a,b) {
@@ -284,6 +266,45 @@ export function miner(ship, shielded) {
     }
   }
 
+  // Number of collector limpets required to be active is a function of the size of the ship and the power of the lasers
+  const miningLaserDps = ship.hardpoints.filter(h => h.m != null)
+                                        .reduce(function(a, b) {
+                                          return a + b.m.getDps();
+                                        }, 0);
+  // Find out how many internal slots we have, and their potential cargo size
+  const potentialCargo = ship.internal.filter(a => usedSlots.indexOf(a) == -1)
+                                      .filter(a => (!a.eligible) || a.eligible.cr)
+                                      .map(b => Math.pow(2, b.maxClass));
+  // One collector for each 1.25 DPS, multiply by 1.25 for medium ships and 1.5 for large ships as they have further to travel
+  // 0 if we only have 1 cargo slot, otherwise minium of 1 and maximum of 6 (excluding size modifier)
+  const sizeModifier = ship.class == 2 ? 1.2 : ship.class == 3 ? 1.5 : 1;
+  let collectorLimpetsRequired = potentialCargo.length == 1 ? 0 : Math.ceil(sizeModifier * Math.min(6, Math.floor(miningLaserDps / 1.25)));
+  console.log(`${collectorLimpetsRequired}`);
+
+  if (collectorLimpetsRequired > 0) {
+    const collectorOrder = [1, 2, 3, 4, 5, 6, 7, 8];
+    const collectorInternals = ship.internal.filter(a => usedSlots.indexOf(a) == -1)
+                                            .filter(a => (!a.eligible) || a.eligible.cc)
+                                            .sort((a,b) => collectorOrder.indexOf(a.maxClass) - collectorOrder.indexOf(b.maxClass));
+    // Always keep at least 2 slots free for cargo racks (1 for shielded)
+    for (let i = 0; i < collectorInternals.length - (shielded ? 1 : 2) && collectorLimpetsRequired > 0; i++) {
+      if (canMount(ship, collectorInternals[i], 'cc')) {
+        // Collector only has odd classes
+        const collectorClass = collectorInternals[i].maxClass % 2 === 0 ? collectorInternals[i].maxClass - 1 : collectorInternals[i].maxClass;
+        ship.use(collectorInternals[i], ModuleUtils.findInternal('cc', collectorClass, 'D'));
+        usedSlots.push(collectorInternals[i]);
+        collectorLimpetsRequired -= collectorInternals[i].m.maximum;
+      }
+    }
+  }
+
+  // Power distributor to power the mining lasers indefinitely
+  const wepRateRequired = ship.hardpoints.filter(h => h.m != null)
+                                          .reduce(function(a, b) {
+                                            return a + b.m.getEps();
+                                          }, 0);
+  standardOpts.pd = ship.getAvailableModules().matchingPowerDist({weprate: wepRateRequired}).id;
+
   // Fill the empty internals with cargo racks
   for (let i = ship.internal.length; i--;) {
     let slot = ship.internal[i];