Yes, I had the same problem. I tried marine grease as it was suggested by another member it worked for a week. I ended up buying the Teflon disk (they sell it for the hobie 16) and putting it inbetween the mast and ball. I have not heard a squeak since. One word of caution, It is hard to get it to stay in the mast when stepping, but we finally got it there. I have mast up storage, so I have not taken the mast down. The disk may be a pain if you’re a stepping a lot I don’t know. It might stay after it is squished.

The disks can be bought at many catamaran parts retailers.

Matt