I did read your entire post, twice.
Thanks for that. I know it was rather long.
This is what I got out of your post:
I can't think of a good reason that you ended up having to ascend on the wrong line.
My girlfriend burned through her air much faster than expected. She was clearly getting anxious and wanted out of there. We came upon the opposite crane and I figured "any port in a storm", better to sort it on the surface than spend any more time and gas at around 80'.
I'm confused by the comments about a potential live drop dive on the Duane.
Drift diving the Duane is going to be a tough sell. Hot drop 6 divers, 2 will come up the wrong ball, 2 will come up the right one and two will be adrift.
It wouldn't be a live drop. Tie up at the upcurrent mooring, divers descend on the line, drift the wreck and ascend on the opposite mooring where the dive boat is now tied off.
I also had good luck with Horizon and Silent World
Thanks for the suggestions, I've added them to my list of potential Key Largo dive ops for the next trip.
Your 1st dive on the Vandenberg had high current and low viz. You had a strenuous swim on the surface line before your descent.
The traverse line from behind the stern to the mooring was at about 14' give or take, not on the surface.
you would have surfaced with >500 psi after your routine safety stop. In general, your pony gas volume is not used in dive planning and is reserved for emergency use.
I consider my pony bottle a combination- bailout if something catastrophic occurs during the dive, and as a reserve to my main tank towards the end of the dive as I let my main tank get below what is typically considered a "safe reserve". I know, some divers say "you're not supposed to use a pony bottle like that" yet no one ever says why it's more dangerous to have 19cf more gas than anyone else on a dive boat.
You complain about inexperienced divers and their errors on your 2nd dive on the Vandy, I'm not sure why this would have affected your dive group, assuming you were independent.
I assume the reason we didn't do a second dive on the Vandenberg is because of the inexperience and all the problems experienced by the other group, but I don't know for sure.
These would be short dives on air.
Yes, the dives were limited by no deco times, not by gas consumption, however I had circled the entire wreck and there was literally nothing else to see at that point.
Your afternoon dives on the Thunderbolt were cancelled due to local conditions. Unfortunately, again, Captain's call, he or she was there, you weren't.
We were 20 miles south at Looe Key. Are the conditions that much different?
If you are counting on your pony as part of your gas supply then it is no longer a redundant source of air and is just an addition to your tank.
The gas in a pony bottle is redundant until and unless it's used. I count it only as a reserve to my main tank I don't actually use it during a typical dive.