Optifine should no longer cause crashes. The custom render code now checks if the offending line is as expected. If it is not, then our code simply doesn't run.
The decayRateMultiplier in options now also multiplies the initial decay that is added when item is first receiving decay. Setting this to 0 will now also stop initial decay from adding to the item.
Updated my derpy decay equation to actually be 50% per day
Removed debug line that was accidentally pushed.