You can create uranium 238 out of thin air by chaining the hexafluoride recipes back to back, 5 238 makes 100 hf where as only 50 hf is required to make 5 238.

There is a similar ratio with the 235 hf enrichment as well, however this one is a little less cheaty because it allows you to convert LEU hf (which comes from depleted uranium?) It's the only trivial way to secure a source of 235 from depleted uranium without having thousands of kovarex running, so im fine with this one existing, though perhaps it should consume more LEU hf instead.

Thanks for this,
The entire mod requires a rewrite and balance change but I have been preoccupied with other things, I will see if I can make time to rewrite them all, thank you.

I figured as much, your efforts are much appreciated, I've had a substantial amount of time invested into this and various other mods and i am having an absolute blast so far (pun may be intended) :)