The toughness of the helicopter (aside performance of course) is critical when it comes to micros. If you can crash and have a very simple and cheap method of repair you are winning customers. Here is something i would love to see - try creating actual videos showing a timing of how quick to change feathershaft/main shaft - giving speed repair tips on the way.

Nice video BTW and nice dog as well!

 

There really is no trick. It's just that easy and fast.
lol Peanut is me Medical service dog. He detects my seizures..