Hi,
I noticed the recipes for smelting diamonds don't all accept productivity modules.
- The smelting recipe (10 graphite =1 diamond) CAN accept productivity modules.
- The advanced smelting recipe (20 graphite +1 vulcanite = 3 diamonds) does NOT accept productivity modules.
This is with K2 and SE (and all the BZ suite).
Also, would you consider a better recipe for flake graphite, that would use another resource ? It's the only one that never gets more efficiency.