I'm back now, got snowed in in Colorado for a day.

I really don't know the exact angle that's built into th eplane. I test fly it, if it feels like it needs more I tell the builder to change it x-amount. I think Pat's right, about 1.5 degrees or less. 2.5 seems like an awful lot.

I usually tell people to fly it as built and see what happens, if your flying style require more then add a very little bit at a time. It's way easier to make things worse than to get it just right.

TF