Hello!
Downunder...I thought everyone knew that todays ABC , AAC , ABN engine weren't that critical to run in!?
In the past (25 years ago)when K&B and some other ABC engines ruled supreme most ABC engines were queaky tight and should be run rather fast to get up to operation temp.
But todays engines are so damn good that this is not necessary any more. As long as you don't run them lean you can run them whatever way you like!
Guys ! Please ! Don't turn this into a rocket science thing again. Please!
30 years experience from Pylonracing, Scale, Aircombat, Aerobatics, CL-combat and General sportflying, has tought me that you will not destroy your engine just because you run it rich when running it in. I'm not saying that's the best metod to do it, it isn't ,but it will not hurt it either.
Regards!
Jan K
Sweden