This may be a standard set up issue...on an inside loop the rcxplanes extra 300 does perfect..no roll at all...on an out side loop although the plane at the bottom of the loop rolls to the right, by like 3 feet and will almost come out knife edge if keep going..

I have not doen anything to laterial balance due to foamie but these are the most realistic flying foamies made IMO...my Yak did the same thing...

Oh, i'm not talking tight 3d type outside loop from an elevator but just standard outside loop..

thanks.

Brian