In the past my yaw strings were made of everything from boars hair to alfalfa stalks and held onto the can-o-pee with rivets and bailing wire. Now having flown with the Bumper MKminus3 on up to the MKIV I have since never landed out, have earned a quadruple diamond with gold oak leaf clusters and have used my glider for a Flight-For-Life mission (which, let me tell you, was a little crowded with the stretcher on board). Zounds! What an advance for mankind! Is there a Nobel prize for glider particle astrophysics?