A Mimetic Digitalis sequencer would work well in this set-up. They are great for stepped CV modulation. It would work nicely with your Pam's.
-- Ronin1973
Thanks for the suggestion. I typically use the MB2s for sequencing, but I'd love to add more onboard ability to lesson my reliance on the tabletop units, particularly if they are good for playing live. With the Pam's and the A138m, that might be a great combo for complex weirdness.