OMS vs HALCYON

[DiverLaura]

extreme depths won't cause you to need massive amounts of lift. the bottles you dive will effect your negative buoyancy, but this turns into a discussion on Aluminum stages vs steel stages, etc...

i can't imagine your instructor has been teaching TDI for 40 years, as I remember when TDI started in 1993, in fact i worked their booth in San Francisco (DEMA/TEK) in 1995.


My primary dive buddy uses the HP130's with a 60lb evolve. i dive HP102's with a 40lb wing. I don't like the 60lb with the 102's as it has a bit of tendency to taco (and taco's are for AFTER the dive).

I'm a prime example of an old dog being able to learn new tricks, and being happier in the end. I've dove both ways that are being described and simply i like my current kit (halcyon evolve 40 on HP 102's, aluminum stages, etc..) hugely better than anything else i've dove through the years (starting with a diverite classic, then an OMS double bladder, bungied, giagantor wing, and everything in between with negative steel stages)

 

[lamont]

My primary dive buddy uses the HP130's with a 60lb evolve. i dive HP102's with a 40lb wing. I don't like the 60lb with the 102's as it has a bit of tendency to taco (and taco's are for AFTER the dive).

Actually, I've been using the 40# evolve with the double-130s lately since its just been with nitrox with no stages or anything else.

And to the OP, 60# wings work down to the brittanic in ~400 feet of water.

And with this:

also i have my oms wing set up to where there are no bungees on the back all bungees are on the front (jocassee style) and that eliminates the taco effect

Doesn't that push the gas to the back of the wing and make you head-heavy in double steels? (Resulting in poor head-up trim and bad finning?)

 

[Green_Streak]

Didn't see this bit of info in the thread and figured it might make a difference. The OP is diving these wings with a single tank NOT doubles.

 

[danvolker]

Didn't see this bit of info in the thread and figured it might make a difference. The OP is diving these wings with a single tank NOT doubles.

He should not be diving either wing mentioned with single tanks....and for doubles, there is virtually no application I could imagine him using them in, where the 55's would not provide enough lift, if he is not making poor choices with huge heavy steel tanks and thick wetsuits with deep diving in mind.

What we need now is a description of where he will be diving, the depth range, temperature range, desired duration of dives, and then we can suggest gear that will work well.
Regards,
DanV