How we got to the point where you have to have 49 qualifications to do a dive is beyond me, unless it is driven this way to create revenue.
I haven't been around that long, but so far, for recreational dive operators, I haven't seen any that were requiring any certifications beyond AOW and Nitrox. I've seen ones that require advanced plus "previous night diving experience and 25 or more logged dives" or similar. But, other than the AOW, that is not a requirement for any actual certifications.
I am curious for those active on this thread – How would you define Master Diver? How does PADI’s minimum requirements ensure your definition? If PADI’s minimum requirements do not ensure your definition and you think PADI is sufficient, HOW? This is why I give little credence to PADI’s Master Diver certification program. The diver may be but the program is not.
It was already discussed in this thread (IIRC) that certifications are an indication of the level of training a person has, not their level of skill or their level of experience.
Scuba diving is not a competition, so I am skeptical that introducing a formal process for recognizing a level of skill would be productive. It seems like that would only serve to make diving competitive. "I have Ultra Scuba Diver, so that means I'm a better diver than you." Whereas now, all you can legitimately say is "I have Master Scuba Diver, so I have more training than you."
In addition, like other sports that do classify people based on demonstrated skill, making a Recreational Diving Master Scuba Diver classification be skill-based would also carry the additional burden (IMO) of "expiring" every year or so. If I don't compete in a motorcycle roadrace in long enough, I lose my Expert license and have to go back to "Amateur/Novice". Skills, unused, fade.
Anyway....
As I said earlier, if Recreational Diving Master Scuba Diver remains a certification of training completed (versus skill demonstrated), then it seems to me that it would reflect being in the top X% of recreational divers (which includes both sport and technical divers) for amount of training completed. Whether that is the top 10%, 5%, 2% or whatever.
And, as I said before, if you make it something like 5 or 10%, I would bet a dollar that most, if not all, of the people who currently have a MSD cert would still qualify for it. From what I've read, the percentage of all people with an OW card or higher that have done as much formal training as is required for a PADI MSD is pretty darn small. I mean, how many divers, out of the millions(?) of people with an OW card, have actually even done Rescue? Or even have 50 logged dives? I bet pretty much everyone with an MSD is in the top 10% of all recreational divers, with regard to amount of formal training completed. And I suspect they are pretty much all in the top 1%, actually. But, that is all wild-ass guessing.
The only "problem" I see is that, out of all the people in the world with an OW (or better) C card, something like 0.01% (number pulled out of thin air for the sake of discussion) of them get their knickers in a twist because they don't have some title that differentiates them from the people who have met the bare minimum requirements for an MSD cert. Or, really, their titles of Advanced Trimix Diver or Full Cave Diver or whatever they do have don't satisfy their egos' need to sound better to Joe Public than a guy who says "I have a Master Scuba Diver certification." They are somehow personally insulted by it when another diver with vastly less experience and skill than them has a card that makes it sound (to people who really don't know anything about scuba diving) as if that person is a "better" diver than them.