RE: Magnum vs Magnum R video
G'day Lee,
Rudeboy is right on the money with his advice, stick with the instructions for control surface throws, you'll find she got a pretty impressive roll rate at speed.
Start with at least 135mm C of G and go from there. Mines set at just over 140mm, nice slow landings with good elevator authority.
My gaps closed right up when I assembled it, I found no need for any sealing.
Cheers
Ken