My neighbor left a bunch of his guitar gear at my house today, so I decided that was reason enough to experiment around with it. I normally don't play my bass through any effects. He had a crybaby wah in his bag, so I plugged it in. Remembering that Frank Zappa used a wah as a kind of "extra tone control" I decided to check out that possibility. WOW! It worked great! There was one specific setting that just blew me away, it added so much punch and clarity to the tone of my Peavey Grind NTB. It achieved tones I can't get just by fiddling with the onboard tone control. I really liked what I heard. I'm going to have to get one of these now. Anyone else do this?