So you do know...engines are desinged to provide x amount of horsepower for y hours. aka also know as hp hrs (same exact idea as your power meter and kwhrs) 1 hp = 3/4 kW... Now while you dont want to baby the engine during break in, you want to vary your speed and not vehicle speed but engine speed...allow the engine to work thru the range, a hard break in provides lots of power right after break in true. Engine feel stronger, but you have really loosed it up faster. Down side, your engine may not last as long over time. Remember, guys who race, rebuild there engines usually aafter every race...break it i hard, but remember life and hp hrs used. Break your engine in moderately, thru the entire rpm range, and let the engine do its thing. And the comment on decel, I always ride up in speed, like 50 mph for 5 min, 60 mph 5 min, 70 mph for 5 min, then chop the throttle and let her slow until just the point of stall, sucking all that oil up into the heads etc. Again, EVERYONE has there opinion, and for me, this has worked on every new engine, car, truck or motorcycle. Remember, the harder you ride/drive, the more hp hrs you are using on an engine designed to provide x hp for y hours!