Items toward bottom of loot table not dropping fix

[Doodman]

I've not looked at nor played with the loot table code at all, so take this with that in mind.

Are common, rare and ultra rare loots in the same loot table? If so, then wouldn't the more common drops be at the begining of the table and favored like they were?

Perhaps there is a bug in there making the ultra-rare drops impossible to drop, but I just want to make sure that making this changes does not effect the drop rate of common vs rare.