I play bass in a deep/soulful house act with a percussionist and a DJ. I've been using a Dunlop Crybaby 105Q for the kind of slow but fairly drastic filter sweeps on the bass you hear in these styles: Sort of a HPF thing were the bass line goes from full-range to sub lows, then slowly builds back up to full range again and LPF where the bass completely thins out and then drops back in for imapact. I incorporate subtle envelope filter and phaser into the chain when I try to do this, but I can't quite match what i hear on recordings and I'm getting frustrated... The 105Q only applies the effect to the mids and highs, leaving the low end clean. Great in most applications, but not this one. Does anyone have any ideas for how I can achieve what DJ's/producers can do with knobs, live?