you can also use a Morley volume Pedal passive model CVO Compact
plug in to amp out on the pedal
the range was a little off so I opened it up and adjusted the spring holding the nylon wire ( fishing line this is a Passive pedal) a little so the range fix the M9 perfectly
before in far the toe position it would go back down a little so I pushed the string a little so it didn't go as far into the heel value and it's worked perfectly
basically of adjust the CVO range to match the m9
done and i got the Morley CVO pedal for $22 on ebay
