Saturday, we dove the oil rigs here in So Calif.. Max depth was 405', runtime was 125 minutes. This was done on my CCR, Dil was 8/68 trimix (O2/He). For bailout, I carried 12/60, 18/45, 50% O2 and 100% O2. On dives like this we always use scooters, it is too hard to swim with 4 Al 80s.