Don't have a screen...

I've never even heard of a screen......

My bowl has a hole like the size of a pinhead. And it's even smaller than that because of the res buildup :P

I hardly ever get hit in the mouth with ash (did at first) and almost never have to worry about smoking shake and it falling out. In fact, i find that if you pack down that shake, it stays near perfect through the burn. So I have to bust a lung sucking, but heh works for me.