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Another vote for Diversions. Awesome crew!

I also do a big emphasis on sustainability and ecology. Almost every session is a "leave it better than you found it" exercise. I bring trash bags and we walk the area during or after debrief, picking up trash to keep the area cleaner than before.

I am conducting some research on Advanced courses (or the NAUI Master Diver course) and what activities an instructor can do to spice the class up a bit. Was there anything that your instructor did during the class that you thought was really cool? A few examples: During the Navigation...

And most people don't know how to use them properly. The MTVs are nice, don't get me wrong. But they take practice to use, are too expensive, need to be serviced, etc... After teaching the DAN course for years, I honestly think that most lay people are better off with a non-rebreather mask...

This is my style. Something that is cheap and what works in an emergency. Nicely done.

After years of spending way too much on oxygen setups, including the DAN kits and MTV valve, I finally went as cheap as possible setting my O2 setup up for our personal craft. I bought some used E cylinders off craiglist for $5 apiece. A nursing facility was selling them off after some their...

The real question is "Who was Cale"?

I was searching for an update on Airspeed Press and saw this. I didn't see anything posted on SB about this, so posting it here. An absolute legend in the tech diving community! https://memorialsource.com/memorial/steven-lindblom

5dx DVD - I believe this contains DPV and scooter skills - SOLD Key West Divers Manual - Billy Dean's original mixed gas diving program from KWD in Key West - SOLD Voodoo gas stickers - From Airspeed press, same company as the Oxy Hackers companion - SOLD Practical Diving - SOLD

Sold!

$30 for both guides shipped to the lower 48

Price drop to $25 plus S&H

Price drop $50 for all tapes. Media mail shipping included to lower 48

Price drop $200 + S&H

Price drop $75 plus S&H

New pricing below 5dx DVD - I believe this contains DPV and scooter skills $5 Bruce Berman's Encyclopedia of American Shipwrecks - $20 Key West Divers Manual - Billy Dean's original mixed gas diving program from KWD in Key West. Collectors item for sure! $25 Voodoo gas stickers - From Airspeed...

Shadow divers exposed and air speed CD sold

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