My bad I understand the 95% ceiling.
What Im not sure of is how use mids builds,. look at an attack power, with its IO slotting (any accuracy IOs), then any acc or to hit bonuses from powers/ slotting and set bonuses, to calculate if im at 95%.
I usually just wing it as im chasing other stuff. Is there an easy way to kinda rough estimate it/eyeball it? If not just drop it arcane, Im not looking for anyone to spend alot of time teaching me. When Im ready Ill do a deep dive.