No, you wrote "to ascend you increase the amount of air in the bcd"..you said nothing about swim up.i said that because to make you ascend controlled by fining buddy...
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No, you wrote "to ascend you increase the amount of air in the bcd"..you said nothing about swim up.i said that because to make you ascend controlled by fining buddy...
Ahhh soryyy buddy that my silly... if I have something silly again.. please tell me and correction me ok...No, you wrote "to ascend you increase the amount of air in the bcd"..you said nothing about swim up.
I have a jacket bcd ( mares) that I bought used from eBay that i love because it does exactly what it's supposed to do without drama but it's layout is completely wrong for me. Useless pockets and d rings just where I don't want them. I'll probably get a wing at some point as i will be able to configure it more to my liking and it may be better suited to the style of diving I wish to pursue.I had a student today who had no issues at all with trim in a BCD, either before or after I took her ankle weights off. This was hovering stationary on a platform. People manage both. The fashion is to say the BCDs are rubbish but really they can work perfectly well.
She did have trouble with getting places to clip things off and part of that would be fixed with less stuff at the front. Maybe a wing, maybe some other BCD.
For a single cylinder setup I think the practical advantages such as during positioning and accommodating almost any sized diver are probably more important than trim. You always have options to move cylinders up and down and change where you keep your arms.