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Hollis DC1/112 or Apeks XTX 50/DST

Discussion in 'Sidemount Diving' started by b1gf00t, Aug 5, 2016.

  1. BeijaFlor

    BeijaFlor Nassau Grouper

    # of Dives: 200 - 499
    Location: Chesapeake Bay
    86
    25
    18
    Maybe this is utterly stupid of me, and I beg your pardon if you believe it is so ... but:

    What makes one first-stage more "sidemount compatible" than another?

    I mean, am I a total waste-of-oxygen for using my Mares MR12 first-stages for sidemount? And if so, WHY?
     
  2. b1gf00t

    b1gf00t Angel Fish

    # of Dives: 50 - 99
    Location: United Arab Emirates
    21
    2
    3
    Honestly I am not th expert to address your question, but from what I gather it's about convenience more than anything. I know MK25 would fit perfectly as it has swivel turret and I am wondering if the hose routing would be an issue. Nevertheless I think I'll convert my existing MK25 to DIN and buy additional pair to match 1st stage.

    That leaves me with deciding 2nd stage and how important is L/R interchangeability.
     
    BeijaFlor likes this.
  3. Coztick

    Coztick Manta Ray

    # of Dives: 50 - 99
    Location: calgary
    584
    361
    63
    If you are happy with the hose routing, why not? I use one on my right side for the long hose. I think it breathes as well as my atx 200 on the left. And no plastic!
    I don't even use the DFC port as I prefer the hose and spg pointed down.
    Cheers
     
  4. BeijaFlor

    BeijaFlor Nassau Grouper

    # of Dives: 200 - 499
    Location: Chesapeake Bay
    86
    25
    18
    I've been using my old Mares MR12 yoke-mount first stages for sidemount and I haven't noticed any major problems. My situation, though, is that I dive on vacation, using the dive-center's tanks. If I show up with DIN regs and all they have are yoke-valve tanks ... well, if a yoke mount were a problem with sidemount, DIN regs with yoke adapters would be an even bigger problem.

    My well-meaning if little-educated advice would be, give the yoke regs a try in sidemount. If you decide to go DIN, ScubaPro has a conversion kit for your existing regs, at probably 1/10 of the cost of a whole first stage.

    (On edit: I see you've gotten the DIN conversion kit for your Mk25 regs. Good move.)
     
    Last edited: Aug 7, 2016
  5. tbone1004

    tbone1004 Technical Instructor ScubaBoard Supporter

    # of Dives: I'm a Fish!
    Location: Greenville, South Carolina, United States
    17,914
    10,126
    113
    @b1gf00t If you already have a mk25 set and you just need an extra first stage, hop on Ebay and grab a Mk25 first stage. You can buy din conversion kits readily and that makes the most sense. No sense in buying new regs when you can use your own

    The 500se has a horrible first stage for sidemount though if it came with the DCX first stage *5 port swivel turret* it would be better. The 5th port is not necessary in sidemount despite what the Razor crowd claims and can only be used with the valves of your tanks in your armpits. The swivel turret is nice for air sharing drills, and while I would not recommend buying first stages without swivels, if you already have useful first stages, it isn't enough to warrant buying new ones. The 500se second stage is nice because it is non-directional which is useful in sidemount, far more so than the lefty/righty configuration from Apeks and now Dive Rite *that is most useful for right side stage/deco bottles* and presents a safety issue if used in a single file air share scenario because the hose now has to cross under the lead diver.
     
  6. MSargeant

    MSargeant Nassau Grouper

    165
    46
    28
    If you can afford it, the Apeks are brilliant! Easy to Service and bombproof construction.
     
  7. Ozwald

    Ozwald Barracuda

    # of Dives: 500 - 999
    Location: Winnipeg, Manitoba, Canada
    408
    57
    28
    I find it odd that Hollis hasn't offered up some sort of defence of their product.
     
  8. TausogDiver

    TausogDiver Angel Fish

    10
    4
    3
  9. CuzzA

    CuzzA Percoidea Wetwork for Hire ScubaBoard Supporter

    17,910
    30,425
    113
    I dive Hollis regs. No issues. Plastic second stage parts (like many others) is a fair argument. Free flowing? Never had it happen to mine, but I imagine a simple adjustment is all that's needed. (Again, like many others.)
     
  10. Ozwald

    Ozwald Barracuda

    # of Dives: 500 - 999
    Location: Winnipeg, Manitoba, Canada
    408
    57
    28
    Adjusted and working better but not even close to my MK25's and A700's.
     

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