I am currenly borrowing a 88ci 3000 carbon fiber melee tank for a tourny this month. It's a major step up from my 50/3000 aluminum tank. It's lighter, go figure. It holds more air, and fits suprisingly compfortable on my gun. The reg's adjustable. If i still had my BT4 Assault w/super RT, i could've cranked the output up to 1000psi and let that baby rip! lolz.
The tank also fills very fast, an added bonus.
This is an outstanding tank. The bigger ones are very cheap because nobody wants a big tank ;)