Just got my VT Bass Speaker Sim Bypass Mod by Mike Putnam. Speaker sim rolls off highs and lows - works good for direct recording, but I feal the bypass mod really opens up when run through a cab. I have 2 svt-210av's so felt that I would give the mod a try, because they allready roll off the highs and cut the very lows and are generally heavy in the upper mids. Verdict - love it. So I posted a quick sound clip (through my laptop so quality is poor) and thought I'd share. Speaker Sim is ON for the first half and OFF in the second part. http://www.soundclick.com/player/single_player.cfm?songid=10129685&q=hi P.S. No settings changed on the VT, just the bypass switch.