Well, mappable curves in racing. A friend busy in racing knows guys with bikes and practically no curves at all in electronics. Maybe a retarded setting for starting and after its full advance all the way. And the bike is fast obviously. So I would not think in racing it matters a lot with "curves" . On public roads it is quite different , so I love my simple flyweight ATDs , hate electronic complications.
Electric current is a funny stuff, you don´t see it but it can do dramatic effects . . ..
Vic