since there was some confusion on exactly how much effect speedhacks have, I made my own and tested it.
speedhacks do not only affect skills with graphical delays like arrow shower and kaite, although for those it is the most dramatic effect.
testing with ahk on the RMS test server, EVERY SKILL IS AFFECTED. it is not an instant 190, but someone with 182 atkspd+speedhack can reach the effect of 190atkspd. this is nearly double the speed, and more importantly a severe game imbalance in favor of such cheaters.
there seems to be some kindof serverside atkspd delay. however it doesnt match up with a normal client or what it should be. its possible it was done this way to accomodate laggy players, but the price to pay for that is now too high. the latest harmony tries to counter this but has wierd timing problems of its own. the best solution is the have delays properly enforced within the server software itself. don't forget serverside delays for the purely graphical skilldelays.
so, can it be fixed merely by adjusting the atkspd formula serverside? does that cause any strange problems?
will some new server fix this and hog all the players tired of this cheating and game imbalance? will eathena step up and fix this in default installations?