My trim tab vibrates, and not just under power. Sailing in smooth waters, it still vibrates. My first thought is that it’s not balanced properly and I’ll need to take it off and trim down it’s leading edge. But it also might have something to do with it’s foil shape, which is non-existent. Anybody else have a trim tab? Is it steady? or does it also vibrate? How is it shaped? If I fix this before I get any reply on this forum, I’ll post an update !