You know what might be interesting? An anchor setup with a quick
release. If you want to hold your position, you drop anchor and cast
away. But if you get a big fish on, you can disconnect the anchor (the
local end has a float so you can retrieve your anchor when you are
done), and you are free to drift and fight the fish away from the
entanglements of your anchor line. Once you have landed (and released)
it, you paddle back to your anchor (now acting like a mooring),
retrieve the end of the line, clip back in, and fish away.

--riverman