Probably I have lost the plate in the bottom of the mast hole. As far as I remember there was a plate with an upstanding pin. What I see now is probably the bronze plate underneath. So no more sailing for me the next weeks, I fear! Hobie has clearly not informed well enough about these problems! Five years ago they told AI-owners to fasten the loose screws, and also said something about Loctite, which Hobie clearly should have put on the screws!
This thread has a very uninformative headline, which in no way says anything about the importance of the subject. I cant find a thread about this topic with a more informative and alarming headline.
Hobie doesnt seem to care too much about their customers, however much some people here like to suggest the opposite!