I pulled the magnets from my Crest toothbrush motor and I'm having my work's avionics dept. put 'em in. Any advice on stage 1-2, capacitors or gearing w/ Li-Ion & fets. I'm trying this before jumping to an Atomic Fatboy. I've heard they are a big upgrade from a few people and their strength is inbetween Neodyium and stock----More maget strength=more torque but less top end? I'm going w/stage 2 11 tooth (blue) for now. The magnets from the tooth brush do have move "pop" and feel substantially stronger. I'll let you now the results in a couple of weeks---p.o.o. (parts on order) and car is completely tore down. adding 18 or 16 guage wire also