Today with all the freediving courses out there and the wealth of information available just a mouse click away on this board, HSD, deeperblue, SpearBoard, etc, divers are pushing way beyond their natural dive limits, myself included. Uneducated, my dive limits were 30 feet tops with 12 pounds of weight. I'm sure many of us were about the same.
Nowadays, I hunt 100+' with breath holds exceeding 3 minutes. Many of us have doubled, tripled and quadrupled our depths and bottom times, but how many of us have stopped to re-evaluate a basic piece of equipment that we've been using since our newbie days?
Our weight belts. We figured out what worked for 20 and 30 foot dives. Then we improved in leaps and bounds, and probably didn't take a hard look at how much weight we carry on our belts. Some of us may have removed a few pounds when taking the "neutral at 33 feet" guideline into consideration. Then we forget all about it and use the same amount of weight for years as we continued to progress as freedivers.
So much focus is spent on kick-starting the mammalian dive reflex, proper breathe-up protocols and surface intervals, and not enough on adjusting weights accordingly. I've lost a dive partner for good, I've watched somebody come to a stop at 15'and start sinking away before a grab was made. Hell, I've had a partner start sinking when blacking out on the surface after an exhale. All three had weights on.
I no longer dive with weights normally. If you are pushing limits, rocking decent depths and trophy-hunting, I ask that you reconsider your weights. You will most likely be surprised. Your diving will most likely improve if you remove half of your weights if not all of it. Sure, it might be a bit difficult at first. After all, weights are used as a crutch by many good divers these days without them being aware of it.
Weights should only be used if you truly cannot get under the surface without considerable effort. Some people who might have this problem are those who wear wetsuits thicker than 3mm, or need to spend some time on the StairMaster at the gym. Every foot you gain as you go down, the effort gets easier. Before you know it, you'll be negative. Don't believe me? Here's a video from the other day.
http://www.youtube.com/watch?v=SAZ7YgCGznA&hd=1
YouTube- FreeDiving With No Weights Clip.wmv
2 piece 3mm suit for a total of 3mm on limbs, 6mm on torso. I am neither fat or scrawny. I have a small skeletal frame so I do not have much bone weight.
Give it a try. I truly believe that it will make many divers here safer, make things safer/easier for a partner to retrieve and revive their buddies, easier to find a swb body, less drag in the water, less crap to break/lose/forget, less weight to carry around, easier time breathing up on the surface, easier to haul up a fish/body, easier time fighting a fish from the surface without getting dunked as easily, etc. The benefits of going weightless are endless.