DIR SPG/Console?

[DRE]

The problem with zipties is that they will break when twisted, hence the use of cave line.


No, the pressure guage is considered backup equipment. Once you get a feel for your gas consumption you can guesstimate pretty closely what your pressure will be at at any point during the dive; the pressure guage serves as a backup to your brain/experience. The critical information is time/depth and direction. That's why all of that info is worn on the wrists - BT on the right arm, compass on the left - so that it is immediately accessible at all times. Also, this configuration is much slicker than having a hefty console clipped off in the same area as your stage bottles. Your buddy's PG, BT and compass also do double duty as your personal backup - always think team!