I would love to see some underwater shots of flies in a current alongside the baitfish they're intended to immitate.
Kenny Abrames has some pics of baitfish in natural light on his website.
Goddard and Clark came out with a book several years ago inluding a series of underwater shots showing what trout see as surface flies - natural and artificial drift into the "window". The results were very interesting. Can't remember the title off-hand
Snorkels and underwater cams at Monomoy next season anyone???