Poseidon comparison

[Smallfrye]

I have a chance to buy either a Poseidon Jetstream 3960 first stage or the older 2960 Odin first stage. Is there any real difference in performance ? or any other considerations between these two models ?
I will be using this with my AGA mask backup, so long term reliability is key.
Thanks, Jim

 

[scubafanatic]

......I have (1) 2960 and several 3960's, as far as I can tell the main difference is the 2960 only has (1) HP port whereas the 3960 has (2) HP ports. I prefer the 3960's for single tank diving as I need 2 HP ports, one for my air-integrated computer, the other for my back-up SPG.

Karl