I have already put Blade CP blades on my AXE. I just had to unscrew the plastic covers on the blades and they fit right in to the Axe. The only problem I had was the white plastic covers on the blade came off and made them go out of ballance but I just removed the rest of it and I flies great now. One other mod I made is the tail rotor shaft. I broke it the first day and didn't have a replacement. so I made trip to the local hardware store and picked up some .078 piano wire and emry cloth and cut a piece and polished it slid right in the back berings with no problem. I don't think that will every break again.