diff --git a/src/main/java/supercritical/api/nuclear/fission/FissionReactor.java b/src/main/java/supercritical/api/nuclear/fission/FissionReactor.java
index e3fc3f2..d8f782b 100644
--- a/src/main/java/supercritical/api/nuclear/fission/FissionReactor.java
+++ b/src/main/java/supercritical/api/nuclear/fission/FissionReactor.java
@@ -184,11 +184,15 @@ public FissionReactor(int size, int depth, double controlRodInsertion) {
         effectiveCoolantChannels = new ArrayList<>();
         // 2pi * r^2 + 2pi * r * l
         surfaceArea = (reactorRadius * reactorRadius) * Math.PI * 2 + reactorDepth * reactorRadius * Math.PI * 2;
-        structuralMass = reactorDepth * reactorRadius * reactorRadius * Math.PI *
-                300; // Assuming 300 kg/m^3 when it's basically empty, does not have to be precise
+
+        // Apparently we do need to initialize it here as well.
+        structuralMass = reactorDepth * reactorRadius * reactorRadius * Math.PI * 300;
     }
 
     public void prepareThermalProperties() {
+        structuralMass = reactorDepth * reactorRadius * reactorRadius * Math.PI *
+                300; // Assuming 300 kg/m^3 when it's basically empty, does not have to be precise
+
         int idRod = 0, idControl = 0, idChannel = 0;
 
         for (int i = 0; i < reactorLayout.length; i++) {
@@ -676,6 +680,7 @@ public void updatePressure() {
     }
 
     public void updateNeutronPoisoning() {
+        this.decayProductsAmount *= decayProductRate;
         this.neutronPoisonAmount += this.decayProductsAmount * (1 - decayProductRate) * poisonFraction;
         this.neutronPoisonAmount *= decayProductRate * Math.exp(-crossSectionRatio * power / surfaceArea);
     }
@@ -699,14 +704,14 @@ public void updatePower() {
             this.neutronFlux *= Math.exp(inverseReactorPeriod);
 
             this.fuelDepletion += this.neutronFlux * reactorDepth;
-            this.decayProductsAmount += Math.max(neutronFlux, 0.) / 1000;
+            // Should be about 0.001x of the value of the variable "power".
+            this.decayProductsAmount += Math.max(neutronFlux, 0.) / 250000;
 
             this.power = this.neutronFlux * this.neutronToPowerConversion;
         } else {
             this.neutronFlux *= 0.5;
             this.power *= 0.5;
         }
-        this.decayProductsAmount *= decayProductRate;
     }
 
     public boolean checkForMeltdown() {
diff --git a/src/main/java/supercritical/common/metatileentities/multi/multiblockpart/MetaTileEntityFuelRodImportBus.java b/src/main/java/supercritical/common/metatileentities/multi/multiblockpart/MetaTileEntityFuelRodImportBus.java
index 87f2471..237e6dd 100644
--- a/src/main/java/supercritical/common/metatileentities/multi/multiblockpart/MetaTileEntityFuelRodImportBus.java
+++ b/src/main/java/supercritical/common/metatileentities/multi/multiblockpart/MetaTileEntityFuelRodImportBus.java
@@ -284,7 +284,7 @@ public void setInternalFuelRod(FuelRod rod) {
 
     @Override
     public boolean isDepleted(double totalDepletion) {
-        return this.depletionPoint <= totalDepletion;
+        return this.depletionPoint <= totalDepletion * this.internalFuelRod.getWeight();
     }
 
     @Override
diff --git a/src/main/resources/assets/supercritical/lang/en_us.lang b/src/main/resources/assets/supercritical/lang/en_us.lang
index 83570e6..0b91d2d 100644
--- a/src/main/resources/assets/supercritical/lang/en_us.lang
+++ b/src/main/resources/assets/supercritical/lang/en_us.lang
@@ -155,7 +155,7 @@ supercritical.gui.fission.pressure=Pressure: %.3f Pa
 supercritical.gui.fission.power=Power: %.3f MW / %.3f MW
 supercritical.gui.fission.k_eff=Neutron multiplication factor: %f
 supercritical.gui.fission.depletion=Current depletion: %f%%
-supercritical.gui.fission.depleted_rod=Depleted rod: %s
+supercritical.gui.fission.depleted_rod=Making %s
 
 supercritical.gui.fission.lock.locked=Reactor locked and active!
 supercritical.gui.fission.lock.unlocked=Reactor not active