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Old November 5th, 2007
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jimdoe2you jimdoe2you is offline
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Re: C4 carbon fins stiffness...30 vs 40

First thing I notice is that's a lot of lead if you are diving or hunting to 60' with a 3mm on and especially for your build. Here is a copy of something I sent Skinner about a month ago regarding proper weighting:

When weighting yourself properly while hunting, you need to first determine your typical hunting depth and then weight yourself slightly negative with neutral bouyancy depth being 25% above your hunting depth with a minimum depth of 5' and a maximum of 30'.

Here are some examples of Hunting Depth and Neutral Bouyancy Depth:

10' HD = 5' NBD (5' minimum)
20' HD = 15' NBD (25% above HD)
30' HD = 23' NBD (25% above HD)
40' HD = 30' NBD (25% above HD)
50' HD = 30' NBD (30' maximum)
60' HD = 30' NBD (30' maximum)
70' HD = 30' NBD (30' maximum)
80' HD = 30' NBD (30' maximum)


The second thing is it looks pretty solid that you should be considering the 30 stiffness. I am 99% certain you would not like the 40 stiffness because you wouldn't be developing the proper kick cycle.

This is an easy recommendation, ..............get the 30.

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