Dick Rutan's Long-Ez has been subjected to high gee's for years. I
don't see this as a problem. My only concern with this type of design
is that the fuel would need to be in the fuselage. I don't
particularly care for this but most aerobatic airplanes are set up this
way so I guess it is ok with most people.

I used to have a Rans S-9. What a great little airplane and a lot of
fun to fly! I flew it in several IAC contests and had a blast with it.

Rick Pellicciotti
LightSportFlying.com