First time I started my DA, it was on Amsoil @ 75:1. I heat cycled it a few times, just blipping the throttle easy and getting it good and warm, but not too hot. Ran a tank thru doing that. Next tank I trimmed out the needle settings for best stick response and highest rpm. (then added just a touch more fuel on the high needle) Then I started flying. It ran flawlessly from the get-go, continues to run flawlessly, and I expect it to keep doing so for quite a long time. My Brison got the same "break-in." As they have accumulated run time I have had to lean out the low needles on both a little bit, but there have been no dramas at all. I basically don't even have to clean my planes, since they aren't blubbering oil pukers.

All this fancy recommended break-in is just wasted time and oil on a nikasil cylinder engine, that's my (a full-time engine builder) opinion. The manufacturers recommend what they do just for CYA. That way inexperienced users get at least 5 gallons of flying before they get happy on the fuel needles and detonate the thing to destruction.