Hold your horses.Exceed isn't useful
You do realise it's not just burst cap up but also burst dmg up right? Assault S exceed S is infinitely better than assault M.
No matter which buff, all single bursts are absolutely capped at 2m dmg, after which the 90% dmg nerf applies. The only known hime to ignore this cap so far is Meta AW, when she bursts at 0 countdown.Burst cap