I have a dx6i, no good receivers for a bigger heli though. I guess I'm approaching the intermediate flying level with my 450s, I'm at the point where I can hover nose in inverted some what comfortable, started trying inverted forward flight last fall, trying to get better at backwards flight, small loops, rolls and funnels...
Trying to bring the simulator flying into real life but having trouble with the fear lol I'm sure a 50 sized nitro with 150$ blades isn't going to help that.
But that's why i'll always have the cheap 450's, so I can try unfamiliar things, crash and not break the bank.
I'm just having a hard time trying to decide what to get, you have an equal ammount of people who love every heli and tell you why its the one you should get
