Thanks for this video on a very important topic. My question is: do you want neutral buoyancy at the start of the dive OR do you want neutral buoyancy at the end of the dive (4-5 lbs more weight needed assuming 1000 lbs final ascent pressure) ?
This is the worst description of determining the correct weight and conducting a weight buoyancy test I have ever seen. They are forgetting to describe the equipment you should have on and if the BC should be fully inflated, deflated etc. This video is a disservice to a novice diver.
And nothing is mentioned about how your mask and body position should change, depending on how much of a breath you have inhaled and held: 80%, 50%, 20%.
I'm a bit confused by this video. Presumably, when you say jump in the pool with no gear, mask and snorkel you need to weight yourself UNTIL the water level is halfway up your mask? Otherwise, what is it telling you? BUT if you do it with no kit won't you be overweighted with a cylinder (Steel one at least)? I know I am... If I jump in the pool with no kit on I would need weight to sink to that level, but with a 12L cylinder on I'm very negatively buoyant in pool water.
