Hi, all -
I just finisned balancing my Sky Raider II - it took 8.5 oz in front and 1/4 oz on the right wingtip. Total weight (digital bathroom scale - probably good to .5 lb) was 5.0 lb - that's what it's supposed to be.
No easy choices in moving the battery - forward of the batt is the fuel tank compartment. There might be room but I'd have to remove part of the compartment to try that. Too much trouble. I have an OS.40 on it now and an OS.46 in reserve if the .40's not enough. Taxi tests and a possible flight tomorrow if weather cooperates
-LeeH