Hi: I think all the initial questions are answered to my satisfaction. You raise an interesting point about the optimal curve to represent saturation/desaturation. With 1" x 1" x 2" neos, half used as main and half used as blocking, the distances traveled by the legs relating to the field would be, starting at zero flux traveling 1/2" to the max flux area across the max flux area of 1" then traveling 1/2" more to get to zero flux. So, over the cycle, 1" is spent in sort of stable flux and 1" is spent traveling either towards zero flux or away from zero flux. 50% "stable" 50% "changing". Thinking of the "standard" 3 phase gen here, a very small percentage of the "time" is spent in the max flux area COMPARED to the time spent in the changing flux, zero area. This is mostly due to the distances separating the magnets. So the question arises in an air based stator where iron core latencies in the magnetic field saturation/desaturation, magnetization curves etc.. are not present, what is an optimal relationship between time at zero and time at max field and in between..??..