I suppose there's a YouTube video in my future featuring some garish footwear on an expression pedal. But, no – I haven't recorded any audio clips just yet. I got a little sidetracked with emulating a Lexicon Vortex and Tommy Bolin's live Echoplex manipulations.
But I have managed to work out the S&H filter algos and many of the Sonic group "belltree"-type pitchshifters. I should probably compile these in another thread, when time permits.