I started playing Claw 2 days ago, the problem is that I can't leave my index finger on X if I want to press the R2 key. Press both at the same time is not synonymous (in cod bo3 not so good). My question is: is not that possible, my fingers get used to it or it just has something to do with my hands.
You have to bend your wrist slightly, take a look at the claw tips from the English Youtuber Flea.