Damage delay is a client side thing. A few sprites have the attack animation out of sync compare to when the game deals with the calculation. Dark Illusion, Alice and a few others have this because their attack animation end too quickly.
"Fixing" this involves a lot of not-very-balanced game aspect that may seem to get Full Buster back on par with AV, but at the same time, you enter the realm of 'HWSB" (the infamous chicken abuse).
Summary: the delay is sprite dependent. If you want a mild fix to the problem, play female gunslinger instead of male.
![[Image: Gmayu.gif]](http://www.pandoraonline.net/heRO_wiki/images/b/be/Gmayu.gif)