On Sun, 11 Dec 2005 10:08:31 -0600, "just me"
wrote:

How many here have one or both of these and have actually used them?

I don't have either, or any practical opinions about how to use them.
However, the December Cruising World has several relevant articles and
some references.

Much as I love surfing, the steering can get tiring in the big stuff.
I can imagine offshore conditions where I would welcome some drag to
work against the stern spinning out, especially if I had already had
enough fun.

Ryk