Hey thanks for the reply. Sorry I did not get back to you sooner. Our clubs Big Bird was this weekend. We are waiting for that engine to return and see what was actually done. I am wondering if heat was a factor pulling that much weight climbing at such a steep angle.

I am running into other issues now. You replied to the information on my Brison 6.4. You were right on, what a wonderful engine. Crap load of power. I have it in a 37% Ultimate. I am having an issue with the spinner and prop slipping being it is an single bolt hub, any idea's?