T&T: Anchoring and anchor watch

[Bob Peterson]

Elliott,  I've been following this thread but don't understand why so many
feel a need to use the anchor's position instead of the boat's position when
anchored.  When I anchor, I typically find the boat tending downwind or
downcurrent, whichever is stronger.  The boat may be 200-300' from the
anchor.  I want the anchor alarm to sound when I drift away from the
original anchored position a selected number of feet.  I don't care about
how far I am from the anchor.  What am I missing?

Bob Peterson
"Lopaka Nane"
47' Lien Hwa CPMY
San Francisco