Hehe...yes, that was what we where thinking about after our first flight when: flipping over, adjusting the folding blades after each landing (means every 30 seconds), scratching the rotor blades at every landing and sanding 1mm of the vertical risers on the concrete ground.
We where scared to death to break the little baby.[:-]
Now we can fly (try to) without getting a heart attack every time he crashes to the ground. Highly recommended!!