When my brother started flying he had a Thunder Tiger trainer with rubber banded wings. He cartwheeled it one day. The wing twisted loose like you'd think it should. The rubber bands crunched the trailing edge of his wing.

I've had two PT-60s with bolt on wings. I cartwheeled one and the wing bolts broke, and very little damage was done to the wing. Everyone's experience varies on things like this. On a plane like the PT, where the kit gives the option, I'd choose bolts.

Neither PT could survive my vertical, nose first, landings. I call them landings because they were in the center of the runway. If they had been off the runway I would call them crashes.