I just took my sonic up for the second time and had just made changes to the cg. Boy was I off!! I ended up having to bury it into a cornfield so not to hit anything! Dam its a tuff plane, just did some checks, removed wieghts from front and up and away again. I dont understand how to balance this thing accurately! Every time I check balance it seems different. Can u not use the 2 person fingers on this plane?? Im using a os40la also. This is a very fun plane to fly!
Tim