Accuracy you really do not need to look into until you hit Coil 1. Or Levi EX which you will probably not be doing until you are done with Coil 1. There are different levels of Accuracy for the turns as you progress though Coil 1, just as it ramps up with Coil 2. Mostly, this is because of the incoming ilevel gear you will be getting.
Coil 1 look for around 472 accuracy by T5
Coil 2 around 495 accuracy by T9
Levi, use 472 T5 accuracy.
Nothing else really is effected by accuracy in the game really to my knownledge. So yeah, go less and stack your crit and det