Gary,
I addressed the rear glue joints through the holes I originally placed in the fuse for rear mounted elevator servo's. After I changed my mind, I used the the holes to build my pushrod supports. I have onlyspun it a couple times, and did not try to flat spin it. After entering a spin, it winds up very fast. It did take a complete revoulution to exit the spin by just neatralizing the controls. I am comfident that it would flat spin, but how well will it come out of it.