hotrodrob
not hotdogbob
I would not let it cool every ten minutes. There is a lot of debate over the break in subject. You want it to be right around the 200-225 degree mark and keep it there. Id run as many tanks as you can all at once, like 6-8 that way. I have to put a wool sock on mine to get it to stay that warm and that rich. Start by letting it idle and the second tank I start running it around about 1/4 throttle and slowly start giving it more gas as the tanks go by. About tank 4-5 start leaning it out a little bit so it can start opening up some. You want the sleeve to get heated and still have plenty of fuel going through it to flush out the impurities. Takes about a gallon to be completely broken in. Or do yourself a favor and buy a quart of bones brew 30% break in fuel and you are done in 1 quart. And while you are at it ditch that fuel and get some 30% nitro 8-10% oil fuel from him to, you wont regret it. Runs much cooler, more power, easier to tune. Whats not to like.
This is a bad break in method