I'm reminded of a couple of friends of mine who are Hispanic. Both of them are bi-lingual. One thinks in English while the other thinks in Spanish. The guy who thinks English while he's speaking Spanish sometimes make embarrasing mistakes.
Learn to think and speak in MOA and not inches. Only then will everything become easy. Far too many long range shooters cannot break the "inches" habit and still find themselves trying to do the machinations in their head, and sometimes they make mistakes. You are not a true LR shooter until you program your brain to see only MOA.
JMHO
Ray