On Sat, 16 Dec 2006 09:12:13 -0500, Howard wrote:

Drop a big ol Fortress anchor over the stern with about 30 feet of line.

It would be heavy enough to hang pretty near straight down, maybe? When
the stern comes up the flukes act as a break slowing the rise. When
stern goes down the flukes just sink.

I think it would change the harmonic frequency, but it may just make
things worse.

Any thoughts?

Yes. My thought is that it would be a lousy way to sail.

Why not go with full flopper stopers off the bow and stern?