I am thinking of a Bafang mid drive for my next ebike project and have I a new Sturmey Archer 3 speed internal that takes an 8/9 speed cassette with 24 or 27 speeds I thought would be perfect. The problem is that the 3 speed will only shift properly when back pedaled and the long rundown seems to be the weak point of this mid drive. Has anyone found a good way to "clutch" the motor for shifting an internal hub? Alternatively I'll just do a hub drive again. Thanks in advance!