For one it's a bad thing to change sensitivity a lot (like once a day), so switching it in the middle of a match sucks as well.
Secondly, you won't be able to track properly, the only case where this is useful is if the player is coming straight at you and will continue to do so, while you have your crosshair on his head.
Those situations nearly never happen, thus it's crap.
dont use it, i tried it once and its terrible man you go to shoot but you're already swining your mouse at the speed you need to use for the normal sensitivity and it fucks up your aim, youll see what i mean
set shotOff "-attack; sensitivity x"
bind mouse1 "+vstr shotOn shotOff"
set shotOff "-attack; sensitivity 154"
bind mouse1 "+vstr shotOn shotOff"
set shotOff "-attack; sensitivity y"
bind mouse1 "+vstr shotOn shotOff"
Secondly, you won't be able to track properly, the only case where this is useful is if the player is coming straight at you and will continue to do so, while you have your crosshair on his head.
Those situations nearly never happen, thus it's crap.