I am using two of this http://www.logidy.com/?pid=1
The only problem is that in mainstage 3.0.1 sustain has a bug.
I use them for patch change, panic, metronome, playback start and sustain*
I have the same logidy pedal and I am having prob;ems with Mainstage as well. Does this sound familar. I have the three different switches set to sustain, sostenutio, and soft (64, 66, 67). If I reroute pedal 2 from 66 to 64 in the assignments and mappings window the sound never stops sustaining. I have to click the pedal in the workspace to make it stop.
Indeed bullinatic, sound never stops, what i do is change patch up or down and come back to the one I use the switch, then it stops.
I've tried with a different switch pedal (Yamaha) connecting it directly to my keyboard (1/4 sustain Labeled) my keyboard is connected via USB, that works but its backwards when i push it it doesn't sustain the sound, then I release it and it does sustain it, I've tried "Invert Parameter Range" but it doesn't work .
I've heard it's a bug so we just have to wait for apple to fix it.......