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WOW...Thanks! Now we know. It's totally weird that most of the voltage drop was across the armature, but I suspected something weird like that would occur. I guess it's the product of the back EMF, especially considering that you did those checks at max RPM when back EMF basically equals voltage going in.
As far as PMW pulses go, are those not mostly absorbed by the ridiculously large capacitors in the controller anyway? I guess that's neither here nor there anymore. If I can't find a cheap higher voltage controller in the next few months I will probably look at buying the Open Revolt kit.
Put it this way: if two controllers on a split motor was the magical answer, everyone would be doing it!
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