you are brave. if i scratched the kitchen cabinets with my blades my wife would kill me.
I get lucky there, somehow I manage not to scratch them at all! I dont know how or why, since the blades are starting to show signs of damage, but the cabinets are fine, no dents, and no scratches.
So far since I fixed my CP I havent really been hitting anything hard *knock on wood*.

I just hope this trend continues where I learn a little more each time and the heli isnt taking a beating itself for my ignorance [:-]