Tasting Brackla almost thirty years apart

Royal Brackla 16 yo 1997/2014 (56.8%, Adelphi, cask #5564, 268 bottles) - Royal Brackla 1993/2012 (46%, Montgomerie's, Rare Select, cask #6798) - Royal Brackla 1976/2006 (59.4%, MacKillop?s Choice, cask #6923) - Royal Brackla 40 yo 1964/2004 (45.9%, Gordon MacPhail, Private Collection, 94 bottles)...