I read SB pretty frequently, but seldom post. I thought this thread was incredibly interesting. It certainly shows just how passionate, and compassionate, divers and Instructors are about their sport (craft?), (obsession?). Stuart - a hearty welcome and near congrats on what you are about to accomplish. Sometimes we forget that diving is something that only a small amount of the population engages in. To do the work necessary to obtain the OW cert is quite an accomplishment.
Now I need to let the Instructor in me say a couple of things... You posted something earlier that gave me pause. "And to respond to those critics, I do want to say the bottom line for me is that I don't believe I would learn anymore or end up any better of a diver if I had to go back to that quarry again today." You posted that on 2Nov. I can only hope that came from a place of frustration with the Board. Stuart, every time you dive makes you a better, more competent diver and buddy. The OW cert is a beginning, not the end. As you gain experience, you will find that you start noticing and seeing things you never did before. Little things like a DM's finning that seems to effortlessly keep him in the same place, or the idea of wearing a knit cap after the dive even though the air temp is 80 degrees, but the water was 55. You may find me a little preachy, but understand that no one, anywhere, at any level of diving education and experience, knows it all. Every dive is a learning experience for everyone.
With that being said, I wish you the best in all you're upcoming diving adventures. It's a great club to be a member of.