I was belly landing on grass as my detachable undercarriage was loose so took it off. First 2 flights where fine but on the third The prop (12x6) caught the ground and the motor pod was the instrument of destruction it damaged the horizontal former the pod sits on and the vertical former the pod sits up against.
It wasn't catastrophic damage but its meant I am now repairing and fitting ply to the same areas your doing now in the build. Its a weak spot in the design and needs good reinforcement. I would build a detachable cowl too, Blocker did that its a god idea better for access later.