The Korg volume pedal has a "Min Level Control" knob. I have the knob set back about 30%. So it's really adjusted more like an "expression" pedal at this point. Next I brought up the piano level so that it's at a comfortable "comping" level when the pedal is eased all the way back. That's the normal position for the pedal unless I get into a solo and need a little extra umph. The pedal gets me there. Next, I adjusted the levels on the e.piano, strings, clavs, transistor organs and tonewheel organs to a similar "comping level" with the pedal eased all the way back as well. It took some time and effort to get this all sorted out but the PX-3's Zone editing ability made it easy enough to do. One other thing I neglected to mention. I play the Privia through a Bose PAS L1 system with (2) B1 Bass Modules. I have the left bass channel going into Channel 1 on the Bose and the output of the volume pedal going into Channel 2. The system has an R1 remote control (about the size of a TV remote) with a 10' cable. I have this control unit velcro'd to the left leg of my keyboard stand. There are individual knobs on the remote for each of the two channels (Treble, Mid, Bass, Channel Level) and Master Level, so I can actually fine tune the bass and other sounds right from the piano bench. Anyhow, that's my current rig. It's not perfect but gets me by for the time being until something more flexible comes along.