Unfortunately I only had ridden the stock/ludicrous controller about 20 miles before I shorted it trying to install a FisherFabhouse light with a tap off of the discharge. I am going to try to fix it but in the 20 miles I was already disappointed with the responsiveness/lag of the assist. I did not have an ISIS crank puller to get at the stock controller but one is coming today. Then I can pull the stock/ludicrous controller but my assumption is that it is fried because the motor will not run off the charger and I don't think it is the throttle because I tried jumping the HIGO pins to test.
Likely off topic but what are the controller wiring differences between the BBSHD and the Ultra? Are the hall effects the same etc.. because I was also looking at adapting a Phaserunner and Cycle Analyst 3 and then we could compare those two. I just was not going to pay for a replacement controller that I did not like anyway when I came upon the Archon.
Addendum:
@Feliz I am an ageing motorcycle guy too
I have a Zero DSR but it handles like a turd and the feedback is all wrong.