Powell, I think you are being a little harsh on Firedog. The E+ BMS is a delicate thing. I smoked one of the two hub BMSs I have trying to follow your path. No fault, no blame, I understood the risks. It is apparent that we are going to run out of E+ BMS boards long before we run out of the motors. If Firedog wants to work on finding another way to keep the motors going, I'm all for it. I appreciate the work both of you have done, and more importantly, shared, with the rest of us who don't have the technical skills to do it themselves.
By way of an update, I have gotten the power tool battery/E+ LiPo BMS combo to work long enough to go for a ride exactly once. It is turning out to be very hard to consistently spoof the BMS into believing the batter has any charge with a bunch of coin cells connected to the BMS battery sensors. I think it is always going to be too finicky to be practical.