Faber LP 85s

[arod15]

I've seen a few recommendations on the faber lp 85s, particularly for sidemount use, stating that these tanks trim out well and have good buoyancy characteristics. I've read that they run about -6 full and 0 lbs when empty, but from the few stores that I see selling them online and on the blue steel website I see these values listed:

Part #:L85DVB
Fill Pressure-psi: 2640
CF: 85
Dia In.: 7.01
Weight Lb.: 31.2
Buoyancy Full / Empty: -3.80 / 2.32

Particularly that they are -3.8 lbs full and +2.32 when empty. Does anyone know if this is a different tank, or if that is how they always have been? I have searched and some believe that the "-6 full and neutral empty" may be with the valves on. Any help would be appreciated.

 

[Scared Silly]

The buoyancy measurements from Blue Steel are sans valve. Add the valve and you get the other buoyancy values.

 

[Gill]

The buoyancy measurements from Blue Steel are sans valve. Add the valve and you get the other buoyancy values.

Ah, that might explain all the discrepancies in buoyancy values whenever I look at specification sheets/tables. I was having such a hard time trying to compare various tanks from various brands.