Turn to mob

[ronmage]

I have my my heading in rad and i used _ATAN2 to get my targets heading in rad. the problems is that i cant get the toon to turn to the mob. most of the time i just keep turning and it is not smooth at that. so the first question is. if i am using Autoit is there anyway to make it hold down the secondary click and than move the mouse left to right at a set speed? that way it will be smooth turning

the second one is more code help i did it as a func so that when i hit the "f" key I should turn to the mod.

If $myrad < $targetrad then
ControlSend("Garry's Mod", "", "", "{a down}")
Sleep(10)
ControlSend("Garry's Mod", "", "", "{a up}")
Else
ControlSend("Garry's Mod", "", "", "{d down}")
Sleep(10)
ControlSend("Garry's Mod", "", "", "{d up}")
endif