RE: Welcome to Club SAITO !
Jack:
Run what you are happy with. Up in the land of idiots and other cold freaks (Haw!) you may well need the higher nitro to get decent engine runs.
But I'm dead serious about overpowering the planes. The one in this picture is my biggest twin, 84" wing span, with two high compression Saito FA-120 engines, and at 21 pounds don't try to hold it back.
Some background on this one. It was built by Carl "Flaps" Laffert, the building half of the Ed Moorman flying team. I got it from Ed. It's six years old, currently undergoing a refurbish.
Bill.