Asuran Fists isn't a critical hit WS, so your atmas don't really give it any boost outside of the DEX on RR giving you accuracy maybe. Switch to a critical hit WS. Backhand Blow, Ascetic's Fury, or Victory Smite are the ones you want (listed in increasing strength).
____________________________Jacs of Leviathan
SAM, MNK, THF, NIN, SCH, DRK, BLU 90
Woodworking 100+3, Synergy 57