Laphroaig pre-warrant 10yr 1990

A side-by-side comparison: Modern Laphroaig 10 (3 cl pour) versus a pre-royal warrant Laphroaig 10 from the 1990s. First, the pre-warrant bottling: It needed about a 30-minute rest in my Glencairn glass, seeming to require some breathing time after being sealed for over three decades. Once aired, the flavors truly emerged. The peat is subdued, more akin to a 16 or 18-year-old expression. The palate has more fruit and is better balanced than the modern version. If tasted blind, I would have guessed it was a Laphroaig 18 due to its refinement. Next: Modern Laphroaig 10. I let this one air out for the same amount of time, as this bottle was purchased just yesterday for a direct comparison. The peat is more astringent and medicinal. It's not necessarily better or worse, just different—more pronounced, with the peat at the forefront. The orchard fruit notes are absent. Conclusion: There's no real contest; the pre-warrant bottling is more elegant, refined, and balanced. I'm uncertain of the reasons. Perhaps better cask management? Older stock? A friend suggested it might involve some sherry casking, but I'm not sure. Perhaps someone else can offer some insight.