So, following everyone's advice, I went to recarb my barleywine. I opened the first bottle and heard a slight hiss. That's when I realized I ended up with this:
And it tastes great. Big sweet, malty nose. It has a slight bourbon flavor (which is why I'm super excited to try the gallon of this I aged on oak. And I think it'll only get better over time.
Also, I checked my notes and this is actually 10.4% ABV, which is probably why it took 3 1/2 months to carb.