csm as Jeremy said you need to do some more reading and check out the faqs. Variable regen should be the least of your concern if you don't get the rest of the my short hand and abbreviations commonly used around here
Lebowski I've been out of the loop for a while and have been just dropping in occasionally looking at threads I'd subscribed to, your controller sounds pretty sweet, I'll have to check it out.
I was just looking at this thread earlier this week and suddenly it’s been bumped. Strange coincidence. Anyway I intended to post this relevant link but got busy with something and never did it.
Looks like Grin has a variable regen solution:
https://www.ebikes.ca/news/CA3-prop-regen/
I think this is my first post on ES but I’ve been reading on here since ‘12.