RE: Modeltech Saphir Build
I had one, too. Very nice ARF. I put an OS .61RF-ABC-P (with PS piston/sleeve) in it and it flew very nicely. Yep, a little pitch coupling in KE, but easily mixed out electronically. I monokoted the whole airplane as it was a bit heavier than I would have liked. I did have one wing panel that was significantly heavier than the other.
Great flying airplane. Post some photos of the finished airplane.
Enjoy,
Will B.