Follow up question: is there any regen on the *brake* pedal?
I hope there is, but reading between the lines on your earlier posts - there probably is not.
In that case, I would drive it in D most of the time ans learn to coast, and then shift to E to get regen. And you could start up again in E (to take advantage of the presumably truncated power use?) and then shift to D once you get going, then coast ... and so on.
Any plans for aeromods?