I have at least balanced the bird and run the Tiger Shark 90. On the stock muffler, did pretty well, I think, turning the APC 14 x 6 recommended at about 9500, not leaned down yet. Pulled pretty good.

What was really neat was setting up the "UNIFLOW" tank three line system....very nice, can hardly wait to fly it... explanation here [link=http://www.rcaerobats.net/uniflow_tank_setup.htm]Uniflow[/link]

As for balance, well the 8.2 all up weight permitted the battery to be just at the CG location of 7". No ballast anywhere. Also the throttle servo is up in the engine bay, and I'm using a Tru Turn 3" instead of 2.75, fwiw.

Sure need some flyable weather now...........