Hey all. One thing I love having on my tone is a rotary effect where it can speed up and slow down with the press of a footswitch, like a Leslie. The Rotosphere does that, but it's big and bulky, and I would like to utilize the Rotary Drum/Horn effect on the M9 instead. However, it looks like the only way I could achieve this is by using the EX-1 Expression Pedal and setting the up position to fast and the down to slow. I would rather use a footswitch, or a separate sustain pedal, to execute the simple effect of toggling the slow/fast options for the rotary effect on the M9. Is that possible, and if so are there any pedals that can do that?