Jim, thanks for the ideas above!
Brief response:
-- Links is a great idea, I will likely add that to the rack plan. Same for the Batumi expander.
-- Scales is presently included for two reasons. First, I'm intrigued by the concept of a quantizer in a modular rig and would like to get my hands on one to learn its various uses. Second, it may be weeks or months before my Metropolix gets delivered. IMO Scales (fed by LFO, EG etc) will get me by on pitch control while I'm waiting for Metropolix, and still have plenty of uses / interest after my sequencer arrives.
-- many interesting other ideas, I will continue to chew on those
I'm on a tablet now so will.keep the response short.
Thanks!!