when i use PAS on my Pedego, it's always smooth sailing, with an even application of power. not so on my ejoe epik se. as i peddle, the power part is always jerky-jerky, kind of off then on. and a little unsettling because of that . is this something that's particular to the ejoe or to lower-power cheaper models in general? i figure the cadence magnets (or whatever they are) aren't as numerous as on the pedego; then again, maybe that's not it at all. ideas, anyone? my gal friend is especially unnerved by the half stop, half go.