There are many threads about break in, and as many methods as there are threads. Stick with the manual described method for now, it is still the most commonly used on RTR engines (idle off the ground for 2 tanks, letting it cool completely between, then two tanks running at low to medium throttle, then continue to take it easy until you've put a half gallon through it, then tune for performance and let her rip). When you have more experience you can try some of the 'riskier', but quicker methods, which are intended more for racing engines.