I'm going to chime in here . I hope I have this right. Paul's tool is sort of like a wrapper for a HW synth. If you insert it as the chosen VSTi say for the BASS track, and assume Bass is on channel 2 still, it's only going to pass channel 2 info out to the midi port. Now being that you CAN use a soft synth in the default slot and on individual tracks try rethinking the application. Use Paul's tool as the DEFAULT synth. This will now pass all of the info out the the midi port.Set your HW synths/harmony units to the appropriate channel. Now if you want a soft synth on say the bass insert it as a track specific VSTi.