Yes, it's true that 3D planes have light wing-loading, and can fly very slowly. They are indeed easier to fly than a trainer, for someone who has already learned the basics of controlling the model. Those good traits, however, are overshadowed by the 3D's maneuverability. While stall characteristics are almost non-existent, to the point where it is nearly impossible to tip-stall, there is still the tendency of a beginner to over-control the plane. And, the maneuverability of something that's 3D capable is a bit extreme, for the most part, with NO self-correcting capability.

If a 3D plane is to be used as a trainer, I would recommend the following: First, get a buddy box and a competent instructor. Center of Gravity should be forward, have 3/4 full throws dialed in, and also use 45% expo on a computerized radio. This will still allow necessary maneuvers for most aerobatics and to cover the basic necessities (landing, takeoff, level flight, etc), while reducing the sensitivity just enough to make it flyable by someone who is inexperienced, AS LONG AS they are with an instructor.

And finally: I am adamant about about the instructor. Don't go it alone on a Twist if you haven't flown before.

NS