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Thanks for sharing! Was that a little bit of free flow at the end? Saw the bubble rush just before surfacing.
Arg, yes there was a free flow, very frustrating! I was using Halcyon H-50D sealed diaphragm first stage regulators with ScubaPro S-600 primary regulator and a Halcyon rebadged SP G-250 back-up regulator. All the regulators were just serviced and detuned to 130 psi prior to this dive.
I kept them in my room overnight and then wrapped in a towel inside my truck until placing them onto my doubles as I kitted up. I was careful not to breathe out of them until I was underwater. As soon as I started breathing at around 10', it felt rather restrictive because of the detuning. My primary was fine for about 20 minutes and then started becoming a little bubbly so I switched to my backup and turned off my primary (right) valve. This was fine for another 5 minutes and then it too started bubbling. I then turned my primary valve back on, switched back to my primary regulator, turned my backup valve off and headed towards the upline. I had already circled the wreck 3 times however I would have enjoyed staying down another 20 minutes or so but up I went in a cloud of bubbles. I did have a 2 minutes deco obligation at 10 feet and then came on up in a stream of bubbles such that the topside crew said it looked like a jacuzzi. I used 1000 psi at depth, lost 1000 psi during the free flows and exited with 1400 psi so I wasn't in any concern about being without sufficient gas but was, and am, very frustrated with the free flowing. My total runtime was 28 minutes.
I have previously had free flowing issues during ice dives when I was not as careful so was extra attentive for this special ice dive and yet the result was similar though I had a little longer time until occurrence.
One future takeaway consideration is to use a separate drysuit fill bottle (which I have but don't usually enjoy the extra gear). I really didn't fill my drysuit or wing much though since once I was at depth and trimmed in, I stayed there. However any relief off of the first stage regulators can't hurt.
I'm also considering replacing my current regulators with Apeks MTX-R regulators for ice diving. I very much like my current regulators for all my other diving pursuits but this is too frustrating since I do enjoy a few yearly ice dives.