Nerfin' it.

src/main/java/com/gmail/nossr50/commands/skills/FishingCommand.java

@@ -60,7 +60,7 @@ public class FishingCommand extends SkillCommand {
 
         // MASTER ANGLER
         if (canMasterAngler) {
-            biteChance = calculateAbilityDisplayValues((skillValue / 4) / (isStorming ? 300 : 500))[0];
+            biteChance = calculateAbilityDisplayValues((skillValue / 10) / (isStorming ? 300 : 500))[0];
         }
     }
 

src/main/java/com/gmail/nossr50/skills/fishing/FishingManager.java

@@ -92,7 +92,7 @@ public class FishingManager extends SkillManager {
     }
 
     public void masterAngler(Fish hook) {
-        hook.setBiteChance(Math.min(hook.getBiteChance() * (getSkillLevel() / 4.0), 1.0));
+        hook.setBiteChance(Math.min(hook.getBiteChance() * (getSkillLevel() / 10.0), 1.0));
     }
 
     /**