I took the class, had to since I combined OW with drysuit.
I do believe at least borrowing a book from a buddy, reviewing what's in it, practicing in a pool environment, is really smart to do. As has been noted, a DS isn't a simple passive item -- there are connections to make, skills to develop that if not learned can result in a ride.
Personally, I'm glad I took the class, and have heard of moderately experienced people who picked up a suit, did some self-teaching with experienced friends, who still went back and took the class after a few feet-first events.
In the big scheme of things, cost of gear and everything else we do, I'd have to think the DS course, where you explicitly work skills with an instructor, is a good use of $.
(Again, for myself only, even though the course says to use the DS only UW, I found that I was better off using DS for squeeze, BC for buoyancy. Even with my DS dump valve fully open I find it a pain in the butt to dump from it on ascent, pumping -- prefer to have as little air as possible and just focus on a normal BC dump.)
Good luck -- it's great to extend the diving season
(Now, if you asked about the need to take the Boat Diving specialty... )
I do believe at least borrowing a book from a buddy, reviewing what's in it, practicing in a pool environment, is really smart to do. As has been noted, a DS isn't a simple passive item -- there are connections to make, skills to develop that if not learned can result in a ride.
Personally, I'm glad I took the class, and have heard of moderately experienced people who picked up a suit, did some self-teaching with experienced friends, who still went back and took the class after a few feet-first events.
In the big scheme of things, cost of gear and everything else we do, I'd have to think the DS course, where you explicitly work skills with an instructor, is a good use of $.
(Again, for myself only, even though the course says to use the DS only UW, I found that I was better off using DS for squeeze, BC for buoyancy. Even with my DS dump valve fully open I find it a pain in the butt to dump from it on ascent, pumping -- prefer to have as little air as possible and just focus on a normal BC dump.)
Good luck -- it's great to extend the diving season
(Now, if you asked about the need to take the Boat Diving specialty... )