YS- break-in fuel question
I am at 6200ASL here in Colorado Springs. I plan to use 30% heli fuel for the extra power. Should I also use it as my break-in fuel, or should I start with a gallon of YS 20/20? On all my other YS engines I always ran the 20%, but I was at sea level, and my experience with R/C car engines is to break in with the exact fuel you intend to run, but they are ABC engines and their heat cycle is crucial, and the YS is ringed, so does it matter?