diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac8e980..7b35dd8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
 - Simple Gene that removes Sex need (called asexual, `rjw_genes_no_sex_need`)
 - New Gene that grows Penisses on Oral sex. Configurable in XML. 
 - New Gene Lifeforce Empath: Gain Lifeforce for sexually satisfied pawns, loose for frustrated pawns.
+- More genes are configurable with XML, e.g. tick speed, distances or multipliers. I am getting the hang of it. 
 
 **Fixes:**
 
diff --git a/Common/Defs/GeneDefs/GeneDefs_GenitaliaSizes.xml b/Common/Defs/GeneDefs/GeneDefs_GenitaliaSizes.xml
index 6d0bb5c..492aedc 100644
--- a/Common/Defs/GeneDefs/GeneDefs_GenitaliaSizes.xml
+++ b/Common/Defs/GeneDefs/GeneDefs_GenitaliaSizes.xml
@@ -125,6 +125,12 @@
       <li>PenisSize</li>
       <li>VaginaSize</li>
     </exclusionTags>
+    <modExtensions>
+        	<li Class="RJW_Genes.TickIntervalExtension">
+				<!-- One day has 60k ticks-->
+				<tickInterval>60000</tickInterval>
+			</li>
+		</modExtensions>
   </GeneDef> 
   
 </Defs>
\ No newline at end of file
diff --git a/Common/Defs/GeneDefs/GeneDefs_LifeForce.xml b/Common/Defs/GeneDefs/GeneDefs_LifeForce.xml
index ba0bf2d..0be1356 100644
--- a/Common/Defs/GeneDefs/GeneDefs_LifeForce.xml
+++ b/Common/Defs/GeneDefs/GeneDefs_LifeForce.xml
@@ -265,8 +265,8 @@
 		<prerequisite>rjw_genes_lifeforce</prerequisite>
 		<displayOrderInCategory>3</displayOrderInCategory>
 		<displayCategory>rjw_genes_fertilin</displayCategory>
-		<biostatCpx>1</biostatCpx>
-		<biostatMet>-1</biostatMet>
+		<biostatCpx>3</biostatCpx>
+		<biostatMet>-2</biostatMet>
 
 		<modExtensions>
 			<li MayRequire="OskarPotocki.VanillaFactionsExpanded.Core" Class="VanillaGenesExpanded.GeneExtension">
diff --git a/Source/Genes/GenitaliaSize/Gene_EvergrowingGenitalia.cs b/Source/Genes/GenitaliaSize/Gene_EvergrowingGenitalia.cs
index 05a6803..87e91ee 100644
--- a/Source/Genes/GenitaliaSize/Gene_EvergrowingGenitalia.cs
+++ b/Source/Genes/GenitaliaSize/Gene_EvergrowingGenitalia.cs
@@ -16,13 +16,14 @@ namespace RJW_Genes
         public const int RESIZING_AGE = 20;
 
         //public const int GROWTH_INTERVAL = 1000; // Test value for Quick Trials
-        public const int GROWTH_INTERVAL = 60000; // 60k == 1 day
+        public const int GROWTH_INTERVAL_FALLBACK = 60000; // 60k == 1 day
 
         public override void Tick()
         {
             base.Tick();
 
-            if (pawn.IsHashIntervalTick(GROWTH_INTERVAL) 
+            int interval = ModExtensionHelper.GetTickIntervalFromModExtension(GeneDefOf.rjw_genes_evergrowth, GROWTH_INTERVAL_FALLBACK);
+            if (pawn.IsHashIntervalTick(interval) 
                 && this.pawn.Map != null 
                 && pawn.ageTracker.AgeBiologicalYears >= RESIZING_AGE)
             {