RE: 3DX, wanting to go brushless out runner
I highly recommend: Himax 2015-4100, GWS D gearbox, Castle Creations 25 amp ESC 12x6 prop on Etec 11.1v 1200ma pack or a lighter one. This is my setup on my 3dx that weighs 13 ounces with gear. Unlimited verticle, half throttle or less hovers, 20+ minute flights and its not super pricy. Not cheap though. Good luck on your choice