RE: Heli-Max Heading Hold Gyro
I wouldn't think that it's much better than the one the blade comes with as it's probably the same one they use in their RTF helis. To get a better one I'd suggest either the Futaba GY240 or Logictech 2100t, both around $100. I think if you got the helimax one it would be a waste of money as I can't see it performing any better than your current one.