So graphite is worth 8 coal? Sure, sounds fine.Graphite would be 64 carbon atoms. Desh SHOULD NOT be synthesized, as it is a required material for high-tech Galacticraft stuff, but it can only be found on Mars. So Desh would have a requirement of "tech", in this case, going to Mars. By the way, you still haven't fixed my diamond duplication exploit, and I am not that happy about that. By the way, your "little script" won't be that easy to do. The Minechem Minetweaker lines are really complex, and it would take around 3 or 4 hours to finish the script.
The diamond duplication exploit requires either halving the cost of diamonds or increasing the value of coal, the second one of those would require rebalancing all of the dusts involving carbon as I used coal and charcoal as my balancing point for GT to MC carbon ratios. I've already done it once so I'm not doing it again anytime soon preferrably, the alternative is making diamonds cheaper which would work for coal but would make them twice as easy to get from every other source of carbon. Anyway MC naturally adds some exploitiness due to its ability to change anything to anything and not balancing all items to be worth the same amount of atoms, a single log is worth 3 coal if you decompose then recompose or a coal is worth 2 charcoal. Worrying about every possible issue when you're manipulating stuff at an atomic level is just going to exhaust you, think of it as MC produces higher quality diamonds then the industrial diamonds that IC gives if you want.