It's feeling a bit inconsistent to me. Is it: Head - 1, Body - 2, Body (armour) - 3, Body (stealth) - 1?

There are times where I have to shoot someone 3 times in the body to kill them... maybe more and these are instances where there's no lag.

You accidently created the same thread twice, http://secure.gamesas.com/forums/viewtopic.php?f=58&t=56424&view=unread#unread either that or someone move the one you created in the other forum.