Mod Request - Soul Gems Changed

I'll apologize in advance if this has already been done, but I couldn't find it anywhere.

Is there a mod that re-structures the soul gem storage priorities so that the souls can be split to fill gems optimally? I'm loving soul trapping, but now have a couple hundred partially filled gems. I'd like to be able to split a soul so that it automatically "tops off" partially filled gems if it doesn't fit perfectly into a completely empty one.