This might be better for a separate thread, but what are some trade-offs between a WRIST-mounted vent and a shoulder-mounted vent?
I'm wondering because, just like other posters, I've had to figure out how to balance inflation functions between my DS and BCD. [After about 10 dives on my DS, I think I'm with the majority--use DS air to manage squeeze and BCD air to manage buoyancy.] I'm wondering if this balance might be easier to manage if the DS vent were a simple wrist vent.
From looking at others' dry suits with wrist vents, it seems they have no open/closed dial--they're always full-open, meaning they're always ensuring that DS won't inflate and become more buoyant when you rise a little in the water column. Without an ability to close them, wouldn't they affect trim more when perfect buoyancy control is needed? On the other hand, in most normal positions (especially asent positions) it's easy to ensure the suit is venting--just raise your arm and watch the bubbles.
I've been thinking of having a left wrist vent installed in my DUI suit, and the shoulder vent removed. I'd feel more comfortable seeing the vent bubbles which are just out of view, and in the security of not stressing the shoulder vent when I don my BCD. Except for a backup depth timer on my right arm, I don't use wrist instruments, and I don't go reaching in cracks for lobsters, so maybe I'm a good candidate for the change.
Thoughts?