The way it works is I get a few levels from my awful slow mob trap, enchant a tool, and if I like the enchantment I keep it and then enchant more picks. If I don't need an enchanted pick, I just void pipe it. I have no clue how the uncrafting table works, so it might be possible to get those 'bred' enchantments into books and then put onto a much better quality pick, like TC3 or diamond. I enchant a bunch of the same type of pick with low levels, pick out the ones I want, and 'breed' the enchantments to get better ones. Sometimes I'll use a stone pick, and iron/gold/diamond is just impossible to do because of how I do things. I usually get a bunch of wooden picks, then enchant them with low levels.
