I too have a 15 yr purple top 24/128! mine is open and afraid to keep drinking it, I never want it to disappear b/c this unicorn I will never see again. I can’t imagine how good it will be with air in the bottle. I only feel it’s fair to review a bottle like this with air time.
One thing you may have wanted to comment on was the distillate. The bottle you have is so old, it should be MGP distillate. Willett now uses their own distillate and they have many different mash bills but those bottles should be younger, *maybe* up to 8 years old now. You may want to also mention how diverse the Purple tops can be. I'd also mention if you REALLY want to try purple tops, it is best to go the distillery where they have an awesome bar with SO many different samples.