I dont know.. the mx518, especially after 1-2 years, had a damn damn short travel way for left and right mousebutton and I could tap so much and fire pistols so fast with it.
this is a good point. i don't know if i can fire as fast as my death adder just yet, because the buttons are "harder" to press (not hard to press though imo). i think with training i'll get there though. and/or just get more headshots