The MP-113 may be reasonably priced, but at $670.00, it is too expensive for my budget. So instead, I built some Bass Midi Pedals using the Spinet Pedals from an old Lowery Home Organ I got for real cheap. Added an Arduino and Midi Port, built a case, and now I'm trying to learn how to play on them. If there's interest, I'll create a post of how I built them.
Anyway, the two points I wanted to make is to make sure you turn on the Cord Detect Feature in the Midi Menu, for the correct Midi channel that the pedals are using. The other is while I was interested in trying to use the Pedals for chords only, using the single finger method, I have to admit that I'm much to fat for that to work. I can't get both feet over to the pedals comfortably. But for the Church Music I play, I've been really liking the effects I get using the Pedals with the On Bass feature. It sounds much more lyrical to have the bass line moving smoothly, with the possibility of passing tones. Some day, I hope to graduate to playing the actual 4 part harmonies.
Adam