Cata definetly has an accuracy boost, but I don't think it's as high as other WS. Should be able to run a test later tonight that compares to the Gekko one I ran a while back.
I've had a few misses in a row, but in long merit sessions it always evens out to 95%.
I use full ares for WS.
how much acc from other slots?
because its 1 hit, its hit or miss
so you can take it like other melee hits i guess
but yea it always even out 95% in the end of the meripo day