Sorry for going off topic from the op, but I just wanted to say that when I ordered my first c02 setup from GLA, I e-mailed them with a bunch of newbie questions and they always answered incredibly quickly and were extremely helpful.
I agree and sorry for the OT. Always contact via email or phone. I sent and received close to a dozen emails regarding my co2 setup and was very impressed with answers and speed. I also received call backs promptly. The forum is more of an announcement strategy and a secondary Q & A.