I saw this at ottos a while back, great work man, love it!  I also love your custom modular, I wish I could make/buy that stuff, awesome sequencer, especially what your doing with the forward/back, totally sounds like granular synthesis/time stretching.  Well thats enough backslashes from me.. you ever bend a vss30? those blow away the sk1 in certain respects, I hooked mine to my arduino the other day and had max controll it, it was circuit bent granular from another dimension.
Keep rockin!