RE: roll coupling on knife edge - problem
I do the same thing for some of my models. The BIG gassers are the easiest to combine aft cg and still get smooth performance.
The precise flying some hope for, does not include the nuetral or unstable setup which makes for really good high alpha flying.
My foamies -I just fly - the cg is aft but I just fly around the "tuck".
Different flying styles-
My point was that the tuck n roll can be trimmed out of most aerobatic designs -if they are basically setup for stable flight.
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