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Tech fin question

Discussion in 'Grand Rapids Scuba Club' started by mikeawags, Dec 2, 2010.

  1. Kazeone

    Kazeone Angel Fish

    # of Dives: 200 - 499
    Location: Bali
    Well said
  2. DevonDiver

    DevonDiver N/A

    # of Dives: 5,000 - ∞
    Location: Subic Bay, Philippines
    Paddle bladed fins are definitely optimal for developing fine control maneuvering techniques. There are an increasingly large number of these fins on the market, offering divers a range of buoyancy amd rigidity characteristics. These represent advances in material compounds technology.

    Fin buoyancy, whether positive, negative or neutral, forms a part of the diver's overall trim needs. These needs differ depending on unique body composition, exposure protection, cylinder type and a host of other personal factors.

    Drysuit divers tend to favor negatively buoyant fins that help counter floaty feet.

    Likewise, backmount doubles place more weight higher on the torso, compared to sidemount, amd often benefit from heavier fins as a counter-balance. Sidemount, especially in wetsuits, favours a neutral or even slightly positive fin.

    Stiffness is also a primary factor. Stiffer fins provide more intuitive kinesthetic feedback and fine control movement. The drawback can be that they compel more muscular exertion in travelling propulsion; increasing fatigue and elevating cardiovascular demand on the body.

    Powerful, stiff fins need to be paired with powerful driving motors...the legs and lungs. This demands higher stamina and cardio fitness from the user.

    That's okay for very frequent divers and those who perform an appropriate supplementary fitness regimen. For many divers, however, the fins will become useless if/when their legs inevitability gass out.

    Choosing a less stiff paddle fin material, and accepting slightly decreased fine control, can be the more prudent option.
    Johanan likes this.
  3. lv2dive

    lv2dive Formerly known as KatePNAtl Staff Member ScubaBoard Supporter

    # of Dives: I'm a Fish!
    Location: Lake City, FL
    Anyone thinking about replying to this thread should be aware the original post and replies were wrapped up about eight years ago. And the OP hasn't logged in to ScubaBoard since last year.

    If the original poster is still diving, and gets a notification / logs back in to ScubaBoard, I have to admit I'd be interested in their 2010 fin choice, and/or in their perspective on that choice today!
  4. Johanan

    Johanan ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Riga, Latvia
    From all fins I've tried, Apeks RK3 are the best. They are almost neutral in water, good balance of power and precision. Now there is also a Apeks RK3 HD version, which is a tad heavier, if memory serves.

    © "Anyone thinking about replying to this thread should be aware the original post and replies were wrapped up about eight years ago." - Oops, didn't see this.

    CAPTAIN SINBAD Divemaster Candidate

    # of Dives: 200 - 499
    Location: Woodbridge VA
    I have owned Hollis F-1s. Great fins. I prefer scubapro Jets.

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