Originally Posted by Boasun
Try taking a large line and wrap it around your mast in a spirial manner. so it looks like a giant screw. Have done this when I was working on a research vessel when they had to lower a transducer on a long pipe leg over the side and attach rigidly... at first it was vibrating madly. but after we wrap a line in a spirial manner around it. The vibration was reduced a great deal.
As that cereal commercial goes; Try it, you might like it.
I've done this also. Worked great. Not as good of a conversation starter at the hoisted fender though.
"True, your boat will outperform mine to windward, but my boat will always outperform yours at anchor." --MedSailor