So far I haven't seen anyone actually try a HH Gyro on the Axe CP. Plenty of people have added them to their Blade CP/CPP's tho.

Plenty of parts available for the Blade CP/CPP's BUT.. you're gonna have to upgrade the tail motor to either their dual-motor setup, or one of the other 3rd party hacks or you'll just burn the tail motors up. I didn't get the Blade just because the Axe is a whole lot sturdier. At this point I think I'd take a long hard look at some of the <$300 versions out there with belt or shaft driven tails, ie: Raptor G2? or the troublesome Walkera's.. Lot more aluminum on them and no tail motor to burn out/use battery power. Seems a lot of them also have seperate Gyros so swapping in a HH shouldn't be as much hassle. *Shrugs*