The GUE OW class was originally about a week long and involved, IIRC, somewhere in the neighborhood of 15 dives, and was estimated to be priced at the $1500 level. Be really honest -- would you have taken that class, when you decided to learn to dive? I wouldn't have. I didn't even know if I was going to LIKE diving, and I certainly never thought I would do much of it.
And for those of you who adamantly maintain that standards for passing OW should be higher . . . when I finished OW, the only way I knew to descend in Puget Sound was on my back. I fell until I hit the bottom, rolled over, and went "diving". My buoyancy control was marginal at best, and I didn't hold a safety stop for a long time, even in warm water. The only two things I had going for me were that I wasn't nervous, and I decided I really wanted to learn to do this.
Would diving, dive buddies, or I have been better served if I had failed the class? If I had, I probably would have said to Peter, "Sorry, I tried," and gone about my life, having put a check in the "scuba diving" box and moved on.
We have seen students whose buoyancy, trim and propulsion weren't impressive at the end of OW, who have gone on to dive regularly and actually WORK on their skills, and have become good divers and good buddies. Some took more classes, and some fell in with good mentors. I've also seen students who have gone on to take more classes, who still struggle. How do you know which is which, when OW class ends?
As much as anyone, I would like to see all divers stable and solid in the water, doing no damage to anything, and responsibly managing their gas and their team. I do not think you can guarantee that all your students will meet that standard, unless you teach something like Thal's 100 hour class AND you have draconian standards for passing. I think you CAN guarantee that you will have spent significant time on what you see as important -- stressing that buoyancy control is the heart of diving; reiterating ad nauseum that checking your air supply is checking your life expectancy; enforcing and modeling buddy behavior from the get-go, and trying as hard as you can to encourage a horizontal posture and an effective kick. I think you can also make it clear that nobody learns to dive well in four open water dives, and that diving is a physical skill, just as skiing is, and that it's more fun if you are better at it, and there are ways to get better at it.
Some of this works . . . we have had a pretty good percentage of ConEd students -- in fact, I wouldn't be surprised if we have seen virtually all of our students who have decided to be local divers, back for additional class time. And yes, we don't know what happens to the ones who got certified to do one trip, or who do a few warm water dives every couple of years, if they happen to be somewhere where there is diving. But I submit that such people will never be the divers I envision, simply because the combination of rusty skills and rental equipment makes that very difficult.