Has anyone actually said who performed the alterations?

The photo shows what seems to be fairly accurate turning on the pin, and a good quality bolt, from viewing just the photos available. The bolt has been sawn to facilitate tightening in a confined space, this should not be a problem to it either.

Why was the alteration needed in the first place? - just a question, not with blame.

As a fitter, if I needed to turn down a pin which had a bush on it, I am looking for more clearance. Next step, no bush.

As an observer, a lot is being said here in conjecture, with probably justified passion. The people involved are passionate about gliding too, Hana is a national champion, Diana a fantastic aircraft.

Please lets be careful about what we speculate apon, its a small industry and these things always take time.

bagger