Are all the MC-2100 REV B controllers the same? I have a Proform Crosswalk 400e and have been looking for a motor control. I am finding MC-2100 controllers with varying part numbers. I read on one forum that all MC-2100 controllers are the same and will work on all treadmillls that call for an MC-2100 controller. Is this true?

Colorrado Skydiver, June 2009