It includes PADI's DM, their level of knowledge and skill level is no where close what the NAUI's MSD or DM.
I agree with this sentiment. I am NAUI MSD certified and PADI DM certified. The PADI DM program was nothing compared to the paces I was put through for NAUI MSD. Even the PADI dive theory was ridiculously light compared to what was expected in the NAUI MSD course/exam.
To be honest, I feel the only things I got from the PADI DM program are a certification card, ability to work in a limited professional capacity, an open door to move on to instructor if I choose, and an annual bill for professional membership dues and liability insurance.
As I observe DMs in the real world and those discussing training/certification requirements here on SB I am totally dismayed at how watered down the PADI DM program is and how much further watered down it seems lots of folks would like it to be. Just look at all the angst filled discussions about the swim test requirements.
The NAUI instructor for my MSD course only took on a limited number of students who possessed appropriate skill sets based on his observation and recommendations from other experienced divers. At the beginning of the first class he ensured everyone was aware that this was not the class to learn how to dive...the expectation was that when you said you wanted to be a Master Diver that you were making a statement about your ability as a diver, that you believed your skillset was well rounded and refined enough to lead and set the example for other divers. As an example, he explained that one was not going to learn how to navigate in his class but we would do activities that required navigation and we would be evaluated, so if your navigation skills needed work then you had better dust off your compass and figure it out.
I came out of that course a better diver over all. The exercises were challenging, the conditions were challenging, and the expectations were high. Not everyone passed, in fact not everyone who started completed the course. We started with 5 people, and only 4 of us made it to the end of the program and only 3 of us passed. The diver who dropped out realized that his skill level was not up to snuff with the rest of us and needed to spend more time in the water gaining experience/refining his technique.
Perhaps the PADI DM course of instruction I engaged in was super easy because of the NAUI MSD course I took. But upon reflection of who and what I see out there, the standards to become a PADI DM are not that high.
-Z