DBPacific
Contributor
Buoyancy. One piece of gear changed (ex. Going to a drysuit) can take someone that has their buoyancy figured out (in a wetsuit) and make them look like an OW student.
I’ve dived with more than a couple people (OW through Master cert) that struggled to get weighted to submerge in a drysuit. By that, I’m talking needing multiple weight additions and even then struggling to submerge.
Thats not a knock on them, but more of a question along the lines of “how exactly are drysuit courses/instructors teaching weighting?” There’s no common instructor or agency for the people that I mentioned, so it just makes me wonder.
That’s not even getting into buoyancy issues that the average diver in a wetsuit deals with.
Even just moving from warm water exposure suits to cold water. I learned to dive in northern Australia, with normally just a 5mm suit and boots and that was it. I managed to get my buoyancy and trim pretty well figured out. Now getting my scientific cert in the PNW, I have a 7mm wetsuit, 7mm hood/vest, the same 5mm boots, but 5mm gloves too. Had my first three dives for the class last week and my buoyancy control on those dives were far worse than on any of my OW dives.