I am diving an O2ptima with the Nomad w/ butt plate.... An issue to be aware of on ocean dives when there is considerable swell on deco the BO tank on your right side swings up and down-it has the inate ability to shut your onboard O2 off. Even from a fully open position i watched it do it several times. Once aware not an issue-but i will need to re rig this so it does n't occur again. Was lucky enuff to get in one nice long dive yesterday on the Andrea Doria- vis ok, majestic. lots of Dolphin schools, current subsided enuff. rest of trip blown out. Still a great dive as always.
