So a few years ago Lyen's controllers were all the rage and got constant mention on these forums but he doesn't seem to have updated anything. I guess he still sells the trap wave controllers, but what happened? Did he get too good of a real job? Was he burned out on supporting ebikers with technical issues? Too much competition? FWIW I have 2 or 3 of his controllers and he had excellent support. Don't use them anymore tho cuz it's nice to have a silent running motor.