IMO the best way to learn 3d is to learn to prop hang with a high wing funfly, then learn to harrier with something stable e.g a nice light 1/4 scale aerobat, then learn to put all the sequences together and torqueroll with the likes of a hype.

The 1/4 scale aerobat stage is a bit out of budget for a lot of people, a well set up hype etc is just as good and 1/4 the price!