jhelmuth:
After reading so many reply posts to the recent thread on a really young diver getting a MSD cert, I wanted to ask you if any dive certification mattered to you, and if so why. To me, ALL certifications hold very little value at all in the sense that they don't say anything about your diving skills. And maybe that's not their intention - but it seems as if we associate the two as being relevant, and then we bash all the agencies for turnig out divers who don't measure up to our expectations. It seems a little like we say it matters on one hand, but then turn around and spew contrary dialog.
I'd really like to either understand why I don't get it, or if it's just human nature to bash others so that we feel better?
Some certs are extremely valuable, particularly those that allow you to obtain fills of gasses beyond air.
Basic nitrox is a great cert. It allows you to obtain EANx fills from 21 to 40% O2. That is valuable if your are diving deeper than 50 ft or more than 2 dives per day or more than 2 days in a row.
Basic trimix is a great cert. It allows you go obtain helium mixes of 21% O2 and richer, called Helitrox (helium + nitrox). These mixes are great for technical dives to 185 ft.
Advanced trimix is a great cert. It allows you to obtain any helium mixes, even with O2 fractions of less than 21%, for diving deeper than 185 ft during technical dives.
An instructor cert is a great cert. It allows you to teach scuba, with the authorization of a major agency, with insurance. An instructor-trainer cert allows you to certify other student instructors, and a course-director cert allows you to certify other instructor-trainers.
Any other cert either gives you additional training, that is valuable, or else provides you with a prerequisite for one of the above specific certs.
Basic rescue is a great cert, because as a diving buddy, you may be called upon to rescue someone. It also gives you a wealth of knowledge about self-rescue.
Divemaster or assistant-instructor or training-assistant allows you to help instructors with classes. That will get you a free lunch, or possible even $50 per day, for your help, depending on the instructor. And it will qualify you for entering an ITC.
Advanced nitrox and decompression procedures are prerequisites.
That leaves all the other unmentioned certs: AOW, specialties, & master diver. Drysuit diving is a valuable specialty. AOW is a combination of specialties, such as deeper diving (to 100 ft), night diving, additional navigation, etc. Master diver in NAUI is an academic theory class with developmental dives associated with the specific topics. Master diver in PADI is a combination of additional specialties. I am not familiar with the other agencies' master diver courses (YMCA, SSI, ANDI, etc.)
Continuing education in diving is good, because you learn how to do new things from trained and licensed instructors. You can get your additional training from your dive buddies, but you won't know if they are teaching you an approved methodology or not. Either way, you are learning.
The worst thing is to dive only infrequently, and without further training. That is an accident waiting to happen.