Maze map focus is annoying to get?
I musta got lucky. Mino maze exposed to air due to a ravine. I love any ability to reverse-craft things (which is why I think about half the EE3 recipes are fantastic). I got my uncrafting before having a serious steel production. I also had a bunch of random steel equipment from dungeons....
However, there are definitely some of these unexpected/undesired inter-mod reactions. There are also a couple items that can be duped with it, at the minor cost of a couple levels.
Can't you just put any steel tools into an ordinary furnace to get the steel ingots back?
I couldn't deal with the need to have a Blast Furnace to make an Industrial Blast Furnace so I explored dungeons for steel.