[SapphireM5]

I come from the theory of drive them hard during break in and I make the engine brake itself to build vacuum to expand the ring and force them against the new cross hatch in the cylinder walls. That cross hatching acts as a file so the new rings and cylinder match as perfect as they can to reduce blow by in the long run and have the highest compression. I run the car up to say 50 mph and let the engine brake. I do this on all new engines I get, dirt bikes, Harley, cars etc. never had an issue, everyone has their theories. I also change the oil after the first day I take it out for it's break in and then every few hundred miles afterwards.