surfgf

  1. J

    Have I understood the basics of decompression theory, GF99 and SurfGF?

    Hi all, Firstly, apologies in advance as I am sure these topics are discussed regularly and heavily. I have actually spent a fair amount of time reading through this forum amongst others in order to write what I am going to below. I appreciate there are many theories, and at the end of the...
  2. rsingler

    Have ScubaBoard's SurfGF threads changed how you plan to dive?

    In the last two months we have had two threads with surveys exploring the relatively new metrics of GF99/GFNow, and SurfGF, which have together garnered more than 5,000 hits. What's your SurfGF and how does it compare to your (Rec) GFHi? Recreational Ascent Rate in the last 15 feet We're...
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