The E150a ruins this bottle for me. Almost as much as a Dalmore. I am one of those purists who staunchly maintains that I CAN TASTE E150A COLORANT. This said, I'm not necessarily against good ole fashioned paxarette when the use of it is divulged on the label (which, frankly, never happened that I know of). Anyway, I get the usual "teeth set on edge" gritty mouthfeel from this HP. If it had been bottled at a higher cask strength without the deceptive chemicals then it would have been much better. For me, the Dumpy 18 with E150a was better but still kind of ruined due to the chemical in that as well. I do not collect old Dumpy bottle HP's for that reason, whereas I tend to gravitate to that same era from other distilleries that eschewed using unpleasantly "chewy" chemicals unfit even for Chewbacca.