Did you look at this post?
http://stunthanger.com/smf/index.php?topic=17518.0
You may what to cosult David's article regarding the incidence on the stab he starten this trend and you my have to go the opposite direction.

John one of the great features of a firewall mounted motor is that by putting small washer under the engines mounting bolts you can move engine in any direction. I have a take apart emodel that was converted from IC this model had 1to2+ incidence in stab motor required one washer under mounting bolts to give motor up thrust with reverse pitch. this could also be a not perfectly aligned fire wall.
Jose Modesto

Thanks fellas for the responses. I guess I am kind of hoping to show up next year ready to compete. I dont mind trimming and actually like it...problem is for us mid country folk is we barely get any flying weather and then must show up ready for the Nats like a week or two later. Trying to get a leg up. This summer was another wash but did get out to some local meets. Forget the competition, I just feel better when I am hanging with my friends and its great to see those who are moving up..do it!