AL Twins vs Stage

[JohnN]

What AL100s are you using? They are incredibly buoyant. At least a couple of pounds when low.

AL100's are 100ft^3 at 3300 psi. Many LOB's are only going to deliver 3000 psi so derate that capacity by ~10%

A whole lot of bulk for minimal gain

 

[Nick_Radov]

P.S.: Reducing gas consumption and changing backplate are not options at this time.

Why not? Aluminum backplates are cheap and readily available.

 

[Searcaigh]

What AL100s are you using? They are incredibly buoyant. At least a couple of pounds when low.

I don't have any, but I did own one in the past and I didn't need any weights when using it, and it certainly wasn't steel. It was also rated at 230 bar.

I sold it to a buddy of mine who subsequently shipped it to the UK when he returned there and to his dismay no dive shop there will fill it as it doesn't comply with UK regulations.

 

[grantmac]

AL80 twins are a fine setup in warm water