I hate the Tippman guns especially the A5. They seem to be hit or miss with quality. Some people swear they are reliable as heck, but the problems I've seen people go through on the field makes me wonder. Same thing with Cockers. Those things need constant "timing" or they start performing like pooh.
With any marker, I'd run HPA/Nitro. CO2 is just a PITA if you ask me.
1987 Honda <B>SUPER</B> Magna
[i]Bikesexual - I like to ride it long and hard...[/i]
Used to play quite a bit. My one and only gun was and is the VM-68. I put a lighter bolt in it and got the Armison barrel for it. Never had any problems with it except for the fact that it was a gas-hog. Had a 9 oz., 12 oz. x 2, and a 20 oz. bottle that would pretty much get used up.
Was never up for the public play, though. We have 12 acres we used to play on. All friends, no strangers. We had only one rule and it may sound puss to you guys but it saved everyone alot of "O Ring"-beatings...the 20 foot rule. I don't know why it was 20 feet, but pretty much no point blank shooting. We drank lots o' beer during these skirmishes and tempers would flare up.