Perhaps the black plastic Spinner
that comes with the CMPro 50 Spitfire is a bit weak
Yesterday I experienced some vibrations / resonances in flight. I went home and checked the balance, I thought it might have been a spinner or prop balance problem.
In the end I think the plastic backplate might be a bit weak, in particular I suspect one of the two screws might have been partially stripped the plastic ...
Luckily I had ordered a very nice new lightweight GP spinner of the right size from tower hobbies, so there won't be any downtime