I believe I have read forums on using tie downs to jack the plane but that is what I have down for 5 years. Well yesterday while doing my annual just before lowering the plane, not even touching the plane, down she came. A small dent where the ring bent over and pushed in the lower wing skin. I tried to straighten he ring enough so I wouldn't further damage the wing. You guessed it, the ring broke. I have started to drill the bolt but was wondering while drilling this material( I think stock ring) should I drill slow, fast or what is the best method. Thanks for your help, Al