Dave,
Last fall, I was fishing the Jetty at South Cape beach (Larry's wacky bay <G>), and landed two huge dormat fluke. One was around five pounds the other - my guess was a little bigger - 6 or so. One was caught on a clouser - the other was on a "Bacula" (spelling). I recently checked my IGFA '98 record book and I believe both would have been a new record for 8 pound tippet!!
One guy who targets them (he even made me that "Bacula") is Ron Monticalvo. He posts here from time to time. He could say more - Ron you out there?
Adam