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Thinking of doubling up my HP80s

Discussion in 'Tanks, Valves and Bands' started by Marie13, Nov 11, 2018.

  1. Caveeagle

    Caveeagle Rebreather Pilot

    # of Dives: 500 - 999
    Location: High Springs, FL
    1,550
    1,044
    113
    Well, I think you are comparing theory to practical, or even typical. Admittedly, I have never dove sidemount from a charter boat. I do know a couple charters the discourage it all together.

    Most of my diving is easy park truck, and walk to the springs. A typical BM diver walks to the water, gets in, dons fins and slips out of the way.

    In comparison, a typical SM dives makes at least a couple trips to the water, has two or more tanks laying around on steps or decking. Then often spends several minutes getting clipped in and adjusting before moving out of the way,

    Sure there are folks that have their **** well sorted that break the mold.. but this is pretty common, and I don’t think boat captions discourage SM just because,,
     
  2. WetRocks

    WetRocks Nassau Grouper

    # of Dives: 200 - 499
    Location: Marianna, FL
    104
    81
    28
    I'm having a hard time understanding your technique there...no way I would jump in the water with a tank in hand .just saying...

    I've only got 1 ocean SM dive,...i was the only SM diver on the boat and was the first to splash. I had LP50s all hooked up and ready to go, walked right to the entry point and splashed. Walked right out and climbed up stairs with them on at the end of the dive .
     
    aquacat8 likes this.
  3. aquacat8

    aquacat8 Solo Diver

    # of Dives: 100 - 199
    Location: Savannah, GA
    1,501
    1,124
    113
    I thought the advantage was NOT carrying 2 tanks at once, instead having crew hand off. More work for them of course, and could be very difficult to impossible in higher seas.
     
  4. MichaelMc

    MichaelMc Divemaster Candidate

    # of Dives: 100 - 199
    Location: Berkeley, CA
    1,526
    834
    113
    The sidemount advantage could be any of: doubles redundancy that travels easily, able to use most any two tanks, tanks at sides for access/streamline/turtling/flexibility, not carrying two tanks at once, ..., or actually going in tiny passages.

    +1 to not jumping off a boat with a tank unclipped.
     
    aquacat8 likes this.
  5. Mike1967

    Mike1967 Manta Ray

    # of Dives: 100 - 199
    Location: Victoria, Australia
    917
    382
    63
    The second tank is actually clipped from the top choker to hip dring but carrying the weight in my hand.
    Try that with LP100s
     
    Compressor likes this.
  6. Marie13

    Marie13 Great Lakes Mermaid

    # of Dives: 200 - 499
    Location: Great Lakes
    6,119
    4,510
    113
    Both DRIS and DGX offer complete HP doubles packages. I got curious and emailed DGX for the heck of it, asking about the 2.5” wide bands and short HP80s issue.

    The response I got indicated no one had ever indicated an issue keeping the 11” bolt spacing.

    I was able to snag a pair of the skinny bands on eBay last night for $75. Much easier than I thought to find them!

    The guy at DGX and a local tech instructor both said anyone they have ever seen diving HP80 doubles has the thinner older bands. I’m now told these were probably made by OMS.
     
  7. laikabear

    laikabear Barracuda

    # of Dives: 200 - 499
    Location: Pasadena, CA
    286
    189
    43
    Another option vs the clip-on weights, if you still find yourself head-heavy with new fins, is a tail weight pouch. Halcyon makes one and I use it on my sets of doubles. It goes on the bolts underneath (before) the wing and backplate.
     
  8. Marie13

    Marie13 Great Lakes Mermaid

    # of Dives: 200 - 499
    Location: Great Lakes
    6,119
    4,510
    113
    That’s what I’ll probably need anyway when I add my heavy undergarment.
     
  9. leadduck

    leadduck Barracuda

    345
    209
    43
    You could also try a DUI classic weight belt harness. With a weight belt harness you can use any fin you like and put a lot of weight on the hips (instead of the waist like a regular weight belt), that may be the perfect place to achieve good trim depending on your body shape.
    Heavy fins can feel like ankle weights, you have to move the weight around with every fin stroke. You'll find that many people don't like ankle weights because of this, but then recommend heavy fins instead, which doesn't make a lot of sense either for the same reason when you think about it.
     
  10. _Ralph

    _Ralph Manta Ray

    520
    217
    43
    Or just buy a V weight, cut it in half (or 2/3, or ...) and hang that from the bottom bolt. Gives you a few options on where to put that weight without having to deal with loose lead

    _R
     

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