I've been searching around reading topics about Ampeg/SVTPro's and it seems lots of people complain about the SVT-3 not having enough volume or headroom. So, I was thinking I might be better off with a SVT-4Pro but when I was in Guitar Center the SVT-4 pro on display was busted and I only got to try a SVT-3 Pro. I liked the tone and everything but it did seem awfully quiet and I didn't like the sound with everything dimed. If I ordered a SVT-4 online would I be happy with it if I liked the tone of the 3 but wanted more power? I originally just wanted a 1x15 cab and was going to add a 2x10 but after trying the SVT-410hlf I knew I had to have it. I'm not sure if I need the power of the SVT-4 though. I'm playing loud hardcore influnced rock/punk where the bass carries the song alot of the time (think fugazi, q and not u, Dismemberment Plan, Moving Units, as well as some HC bands like City of Caterpillar). I'm sure there won't be a PA at some shows so thats a consideration. Right now, my guitar player isn't that loud but I'm looking to join a new band and want a kickin setup that I know can step up to the guitar players rigs. What you guys think? I'm trying to finalize my decisions right now so your advice would be quite helpful. Thanks.