I'd just like to humbly point out to all of you glider jocks that "flying the box" so that I could drive the crappy old 182 tow plane 25 years ago was a heck of a lot more challenging than any spin recovery (including some VERY interesting times in S2's and Extras) I have ever needed to perform. That being said, maybe the very presence (and necessity) of the piece of yarn taped to the canopy makes you inherently better equipped to deal with these sorts of difficulties. On the other hand, we mere mortals (and no, I am not possessed of a glider rating) who require internal combustion might just benefit from the extra hand holding to keep us out of trouble.