yes, and it has been answered by a few of us now. The answer is "you cant" with the way you are currently sending packets. After a couple of useitem packets that ignore the cooldown, the server will reject (and eventually disconnect you) the packet and not use your ability since its on cooldown. It will sometimes allow you to bypass the cooldown once or twice, but more then that and it wont. And, as ive said a few times now, the client's cooldown starts from the last useitem packet you send EVEN IF that useitem packet didnt trigger the cloak.