Good idea, but my understand is you were blown off the wreck. If you were blown off the wreck, you can't tie into it.
Hey Walter:
Well, I reread the OP that I quoted in my response, in case I misunderstood something. It states in the scenerio that "You and your buddy are diving a wreck." So I see them as on the wreck, not blown behind it. My reasoning of my statement for tying my sisal and liftbag into the wreck. A couple of things going on here:
1). Our Wreck training always states that you start your dive on a wreck 'into the current,' never with it. It's rare, but it could happen that you are hooked at the very bow or stern of a wreck. But typically, we are somewhere amidships (easist place to hook and tie in).
2). Our wrecks are big in the Jersey area. There are some small ones, but usually they are huge. If I find myself moving in current faster than I can swim in, I know.
3). Currents can blow up during a dive, but usually I find them running as I start the dive. If it's anything close to not being able to swim against it, I tie a cross wreck line into the anchor line and proceed with my dive (I do it in extreme limited visibility days too).
So, I was just trying to state my position NOT to leave my buddy (I believe that was the root of the OP question), and how WE would get out of it (North Atlantic trained).
Blown off the wreck is another statement. We've been trained to do a few things. The one that comes to mind the most is to dump everything out of your BC and Drysuit, tie your sisal onto your weightbelt (yes, I still use them - only wetsuit diving is when I use my integrated BC), drop the weightbelt with the sisal, then manually come up the reel. This is a tricky manuver, and requires a bit of task loading, but it can be done. You need to monitor your depth, ascent rate, and gas expansion in your BC and Drysuit as you ascend. If the current is so strong, you are going to bounce behind the wreck as you surface, but at least your not doing a free ascent in a heavy current. Something is holding you to the bottom. I don't get into these scenarios, but I think about them and play "what if."