The taxi away and taxi back thing isn't something I'd do. It sounds good, but in the time from when you loose control until you get the antenna up, a lot can happen. I don't know about you, but I'm not physically able to pull the antenna and be messing with the sticks at the same time. (yes, I realize you don't have to get the antenna all the way up, just enoug to restore control, but still). If the throttle glicthed to full power, the plane could leap off the ground and either hit something, or catch a wing tip and damage the plane.

It's just safer to teather the plane so it can't go anywhere or damage itself or anything else, and walk a short distance.