Proper BPW

[xan]

Looking them up, it appears they gave three diffrent sizes, small standard and long. It appears they offer all three sizes in all three of their BP materials, SS, AL, and carbon. Thank you.

There's no long for the Halcyon CF, just small and standard (unlike SS and AL). Here's a comparison of their plates including sizes and weights.

 

[Angelo Farina]

My reason for switching to BPW is next summer when she turns 18, we will move into your world of technical diving together. So need something for twin tanks, but my backplate is fairly large on her frame.

My plastic back plate was initially employed with twin tanks. I did use twin tanks from my OW course in 1975 up to 1990, when I bought my first single tank (15l, 200 bar, dual valve with reserve) as I renounced to deep deco dives, which were the norm before.