Mark,
The airplane hasn't been built yet. The cutting files are not done. There are or have been full size racing biplanes with this wing configuration. There should be no bad flight characteristics. The airplane is not intended to be a precision aerobatic airplane. I am confident it will be good for inside and outside loops, wingovers, inverted flight, and figure eights. I wouldn't expect it to be an airplane for square or triangular maneuvers.
Sorry to be so long getting back to you, I was out of the country.
Thanks, Pat