I am a happy user of the Yamaha MFC10....

Now i am at the verge of building an instrument from scratch, and was looking into multi pedal options..

Does anyone have experience with these behringer pedals? and how do they compare to the yamaha mfc10, i gave it some tought and i might prefer the pedal form of the behringer compared to the round ones of the mfc10...

I don'ts know exactly what your needs are but a friend told me a number of years ago that the Yamaha MFC10 doesn't send multiple CC messages. The FCB1010 does and it has a lot going for itself; readily aviable mod chips (I installed the uNo chip into mine), 3rd party PC editors, built-in two pedals, huge support on the net, and dirt-cheap! I never owned an MFC10, but the 10 foot switches and two extras swithes for up and down are pretty good to operate.

I need to incorporate a midi foot controller for vArrnager myself My Gordius Giant is not too travel friendly but the Softstep will be.

A bit old, but here's a comparison chart for midi foot controllers http://musicplayers.com/tutorials/guitars/2006/MIDI_ComparisonChart_r2.pdf

An accordion player using the Roland midi foot controller and Ableton live.
https://www.youtube.com/watch?v=9UvIq-fvxYI