OK...this is an honest question..
I do not know much about aero or plane design... sadly,, I am one of the ARF masses.... and I have not owned a CAP...

but the comments state that moving the stab made a difference...

forgive me, but my question is this... unless you fly the EXACT same model with the stab in two different places.... how can you really tell if it is making a difference.. as two models of the same plane can fly quite differently due to the several hundred other things that could be a hare of here, a scosh there??

Honest question... how do you "KNOW" it made a difference?

I can then add the testing methodology to my quiver of knowledge...

Thanks