It's enough to make you wonder how they can tell the difference in taste between Weller and Van Winkle at that age. I am certain the batching is larger for Weller 12 than for ORVW.
I cannot deny, however, that wheaters open up over time. I was disgusted by my Lot B purchase. It wasnt any better than Weller 12 out of the bottle. 2 months later it now surpasses Weller 12. Its gotten smoother too. Oxidation and wheaters go hand in hand... But at some point there will be a drop off.