Sorry, I tend to assume too much sometimes.
There's been a lot of discussions on this board about back plates (BP) and wings (back inflated BC), so go surfin' and see if you can find them. I'm not going to get into the details of it all since you can read about it from authors better than I.
Here's a few links to get you started.
http://www.gue.com -- Read equipment section.
http://www.wkpp.org -- Read equipment section and pics.
http://www.sfdj.com/dive/dir1.htm -- Download both DIR 1 and DIR 3. This is good stuff.
http://wrolf.net/index.html -- Scroll down and read all the hogarthian and DIR stuff.
http://www.sfdj.com/dive/dir1.htm -- DIR shop.
The topic of DIR tends to get heated on some boards -- mostly people feeding their own ego's (on both sides of the issue). When reading, just remember it's the substance that counts not the presentation. The guys who "founded" and refined the DIR stuff above are the best of the best among technical divers and there is no disputing this fact. No one has come close to their accomplishments, so you have to ask youself: if it's good enough for them, is it good enough for me? My answer was of course yes, but you can decide for yourself.
There, that my DIR speal for the week. Good luck.
Mike
Any questions, just fire away.
Mike
