Well, maybe it spins faster, but it's also just better. I put an aftermarket alternator on my Eldorado, courtesy of Greg Field, that curiously looks exactly like what is going to be fitted to the Breva. 600 watts, baby! I can't quite run the arc welder, but almost anything short of that is ok. But, the only electric equipment I have are a pair of Widder gloves. Fernando- get an aerostich suit (expensive, but worth it) and wear a fuzzy fleece pullover under it. I've had that for 4 years now, and I can (3-4 hours) ride in anything warmer than -5 F, and an hour or so at -15 F.
My hands (the right one) is sensitve 'cause it has a lot of scar tissue on and in it. Stupid oil field...