You DO have to have several heat up and cool down sessions if you have a forged piston, like a wesico. Wesico itself tells you to heat your bike up and let it cool down, increasing throttle amounts steadely each time you do it. This break-in proccess is for the piston only, it makes it stronger. That is the only reason you do the cycles, to break in the piston. If you ever got a Wesico piston, the instructions that came with it say this right on it!!!!! That motoman guy is weird, knocking on all the factory break in recomendations with no freckin' proof. Just my .02$