Weaving Back & Forth at Anchor

[nelson.peter]

We have a Jeanneau Sun Odyssey 45.2 that weaves back and forth when at anchor. If we could stay inside the tabs of the talk (+/- 30 deg. off center), I'd be fine. But our boat veers as much as 40-50 deg. It is uncomfortable as well as increases the chance of dragging anchor as the force of the wind strikes the hull. It seems to veer more than other boats. I am trying to figure out why so I can come up with a solution.

It seems to be sailing on its foil (keel) over the wind-induced surface current. I've tried locking the wheel to either side with the boom (and stack pack) secured to one side of the boat. I have tried going off the bow roller as well as off the forward cleat scupper, to no avail. We've tried tying a bucket off the stern to slow its swing! Nothing has worked.

I am not interested in building a steadying sail or dropping a stern lunch hook.

Am I missing something simple here? Or is there a deeper issue I am not seeing? Your help is appreciated. Thanks.