I guess my OS 61 SF that is at least 10 years old must not run.. but it makes noise as though it is. And it has plenty of power to pull along my Tiger 60 just fine. It was broken in as the directions stipulated and as we've been talking about in this thread.

Sorry, but I must agree with Bruce on this one.. and agree to disagree I guess. I will continue breaking in my OS engines the way I've been doing it since I started out in this hobby and as I have been taught by someone that has been flying RC continuously for over 33 years now, and run it through two or three tanks switching back and forth from 4C to 2C.

I have a feeling that you are in the minority on this one, RC Pilet.

DS.