Chas, with the MS-60 and the Electro, I use a stereo expression pedal, with both units plugged in. I use a 13 note Ketron pedalboard and the sustain is assigned to one of those pedals. In a duo or trio situation, I always use an expression pedal on the C-1.

You're right. An expression pedal is essential to a B-3 type sound.

That's part of the process for some of us.

Russ