The recipee lvl 4 for example only makes it more expensive - all the 20+ recipees are THE SAME except that it takes 1000 plasma instead of 100.
Same with utility - recipe is the same but thermofuild intake is 5 times more.
Not something handled by this mod, should be handled by base crafting efficiency mod, but I'll take a look at it and see if I can figure out why its not working.
