On my nacra F18 I have a very light full-carbon tiller extension, I think it is a JJB-stick.(I'm not sure, but probably like this one )

I like it because of it’s weight (485grams), but sometimes it can drive me crazy. If I rotate it into the right position, than it is locked, but it is strange that possible to over-rotate (easily), and it will be unlocked again.

It also caused me capsize...

Is it normal with this joystick? Any suggestion ?

ps: sorry for my English