I only use my thumb for the thumb stick and buttons and my index finger to control the back 4 bumpers. Been watching the pros and noticed they use their middle fingers for the back two bumpers and index for the first two. Have to admit makes a lot more sense and much quicker reactions.
I’ve just tried to do it on SB just on semi pro doing the nakata objective but fingers were all over the place. Worth working on my muscle memory and reconfiguring my hands to improve my gameplay or am I looking too much into it.