Emulord - the trouble there is, if there are *any* actions that take less than 1.0s, people will use them instead of waiting. At the moment we have dropping items, swapping to the off-hand, firing with finesse, reloading with reloader, walking back and forth with hellrunner... when waiting takes longer than other actions, sensible/optimal players will not use the wait command.
To put this another way, we *already* always get first hit in AoMC, provided we don't use the current (rubishy) wait command, and find other things to do instead.
As a middle-ground, I'd suggest that waiting takes the amount of time of your quickest action in jupiter hell. Alternatively, just have it take less than any other typical action (say, 0.5s in doomrl), or perhaps take the time of your last action?