rwh,
Although I'll never understand the "need" to hand launch (or catch) a 3D capable plane, it's quite different than trying to do it with a trainer.

A high power to weight ratio (like on the plane in your photo) usually means it doesn't take much more than letting it fly out of your hand. Where, with a low powered trainer, you really have to throw it, often from a running start. That ain't smart, and may qualify for a Darwin nomination.
Dennis-