I hope someone could help a beginner out a little.
I have been scratch building an airplane (for too long) and it´s close to first flight. But after all the time spent building I´m starting to doubt my self...

The question is; When taking an existing airfoil and "making it" 3D/FunFly by adding ailerons that´s extended/larger in the aft direction of the chord, should the CG still be in the "25%" region?
(I realize there probably are other forces involved, but my vocabulary/knowledge regarding aerodynamics stops me from insulting my self by trying to evolve the question. )

That´s how I have built it, but I´m starting to doubt it all and thinking it might be too tail heavy and that I might be in for a surprise when I take it of the ground for the first time...