Since you play IL-2 "only", one reminder of what it means to jump from that to DCS.
IL-2 is a game, and you are done after reading 5 minutes at best, not counting to set
up your keyboard commands. DCS, every title of theirs, apparently, means in-depth study
sims - and you need to treat them like that if you want to get the best out of them.
That means: you will need to spend hours with reading.