261311
Contributor
My only concern is however is it looks like everyone is over weighted, if you're at the proper weighting/ level and you're neutrally buoyant I'd assume you have to "swim" down, correct? I actually did "try" going without a weight belt but I didn't sink (makes sense given the purpose isn't to actually sink you) but the instructor and DM assist were teaching decent in a column (slowly controlled sinking) by venting air in their BCD which, if my BCD is airless and I'm neut buoyant on the surface- well, now I'm confused. It seems some initial over weighting is needed, or is that few extra pounds to compensate for the tank usage the precise thing you need to just get you started granted water pressure will just naturally help you after you're under (which the BCD counter acts at depth?)? It's funny how 2/5 in and I still feel this ignorant about BC. The book doesn't exactly explain much rather than the IMPORTANCE of it or the displacement of an object, not how that changes as its place in water is modified.