I'd have to locate my notes (long ago, not happening), but the class topics (from my calendar) and elements/dives (from my memory) for the NAUI MSD were as follows (everything was about diving up here, cold, dark, limited vis):
* Every NAUI class reviews and performs rescue techniques.
1. Responsible Diver Techniques (entries/exits [you ever do an entry from 15' above the water surface?], air share/buddy breathe, BC breathe, CSEA, navigation, weight check, gear configurations, signals, weather, probably more stuff....)
2. Wreck Diving (diving from a boat, including etiquette, sketch/measure/document, identify features and then select object from other written documentation, terminology)
3. Equipment Operation/knowledge/care/inspection and basic maintenance
4. Deep/Decompression Theory (SAC/RMV, Rock Bottom/gas management, narcosis, lights/signals, exposure protection (cold), equipment selection (cold) and primer to deco. Dive on a wreck at 130' to the mud in Lake Erie (cold & dark)
5. Search & Recovery (search patterns, rigging, lift bag use, lift calculations, gear planning and implementation, teamwork)
6. Plan/conduct a night river drift...
Master of nothing, but a substantially broader experience base than OW/AOW...
The LDS used the class to identify DM candidates....
I originally certified in a YMCA program that actually covered OW/AOW/some rescue, and a significant part of this MSD, and did deco planning. When I took AOW, Rescue, and MSD as classes, it did repeat topics many times... but you still learn when working with another professional.
YMMV
* Every NAUI class reviews and performs rescue techniques.
1. Responsible Diver Techniques (entries/exits [you ever do an entry from 15' above the water surface?], air share/buddy breathe, BC breathe, CSEA, navigation, weight check, gear configurations, signals, weather, probably more stuff....)
2. Wreck Diving (diving from a boat, including etiquette, sketch/measure/document, identify features and then select object from other written documentation, terminology)
3. Equipment Operation/knowledge/care/inspection and basic maintenance
4. Deep/Decompression Theory (SAC/RMV, Rock Bottom/gas management, narcosis, lights/signals, exposure protection (cold), equipment selection (cold) and primer to deco. Dive on a wreck at 130' to the mud in Lake Erie (cold & dark)
5. Search & Recovery (search patterns, rigging, lift bag use, lift calculations, gear planning and implementation, teamwork)
6. Plan/conduct a night river drift...
Master of nothing, but a substantially broader experience base than OW/AOW...
The LDS used the class to identify DM candidates....
I originally certified in a YMCA program that actually covered OW/AOW/some rescue, and a significant part of this MSD, and did deco planning. When I took AOW, Rescue, and MSD as classes, it did repeat topics many times... but you still learn when working with another professional.
YMMV