i had a customer ask me to custom make this for him, and it came out pretty nifty. here's a little demo of what its capable of... there are tons of possibilities for this little unit. it is basically two roland EV5's (complete with internal trim pots) the size of a micro looper. You switch between the two expression pedals with the footswitch. it'll work on most pedals, i've tried it on my DL4, PS5, D time mod DD5, PH3, MOog's, timefactor, modfactor, etc. PM or email me if you're interested in picking one up.