ORIGINAL: daveopam
I would say that depends on the plane. I am not familiar with your bird. On my Funtana anything past 60degrees dosn't help. i did however have to remove the covering from the stab and double bevel it. I did this after the ELEV was on and it was pretty simple.
Most of the 3D dosn't need the full 60degrees. The things that do are Waterfalls and Elevators. Lomcevaks and other tumbles don't seem to require that much deflection on mine. Keep in mind your rudder also. A good tumble needs a bunch of rudder.IMHO
David
I found the same thing with my Funtana 90, I can't get enough elevator with the unmodified plane. I haven't modified my Funtana, not sure if I will.
I've noticed that this problem of not having enough beveling is a very common problem with ARFs. I'm currently assembling a Quique Somenzini Yak 72". Fantasic quality kit, but it doesn't have enough bevel in the elevator to get the recommended 3D travel. I will probably end up with a gap that is larger than I like and seal the gap with clear Monokote.
Malcolm