Ok, so things got away from me brewing a barleywine today, and I ended up with an OG of 1.135. I just pitched a pack of US-05 (it's what I'd planned on, and I didn't have anything more suitable around), but I'm looking ahead to the point where it's 12% ABV and the yeast conk out with fermentation still to go. Should I just cross my fingers and hope the yeasts can handle it, or should I go find some backup yeast (and if so, what kind?) to pitch after they poison themselves? (For what it's worth, I will be bottling this when it's done.)