Quote: (Originally Posted by
onetime)

You may have some especially buoyant undergarments that you could try to swap out but, in the end, you need what you need to safely and comfortably complete your dive.
Every person is different. General guidelines of body weight to amount of lead needed work generally, not specifically. My wife is <120lbs and needs at least 12 lbs when diving in just a lycra skin when we're on vacation. When her BC is completely empty and carrying 12lbs she can descend properly, anything less and she's got to go head first and kick like mad. Then as her tank pressure decreases during the dive she's got to worry about the increased buoyancy of the aluminum 80's we're typically forced to dive.
You wouldn't believe the hassles that it causes with divemasters as I explain to them that she needs 12 lbs. Often they argue and tell me I don't know what I'm talking about. On one occassion a divemaster refused to give her 12 and would only go as high as 10. I was ready to demand a refund and/or toss him off the side of the boat but my wife agreed to take the 10 and give it a try. So, for the rest of the dive I basically felt like a boy with a balloon as I had to grab one of her d-rings to keep her from slowly drifting up.
FWIW, I'm using about the same weight from OC to CCR maybe two pounds less.
i must say thank you to all the guys, but i am returning this note to you mate, just to tell you that you've made me feel a lot better. i dont know why, but i just need weights. this is unbelievable. your story with your wife, was something.
the reason i was giving this thread out to people, is that because my buddy, which we started ccr diving together, has gone from 14kg, to 4kg only!!!
we use the same undersuit, and dry suit. and the same rebreather, same stuff etc. this is what drives me mad.
the question is, is there a change in CCR from OC as far as weights, and why is that?
Thanks.