According to Bruichladdich web-site, Infinity is a vatting of 100% Refill Sherry casks. But some (or all?) quite young one's. And I read or heard somewhere, that it should contain a "dash" of Port Charlotte also from a sherry cask, (maybe even a Bloodtub)
Haven't opened my bottle yet, but had it at a tasting in june '05. According to my notes, it should be casks from '89, '90 and '91, and 2001 PC (sherry)
Nose of sherry, fruits and a little smoke. Taste of sherry, dried fruits and sweet liqourice. Medium long and slightly bitter finish.
The 1986 sherried Laddie's are probably all very good, since IMHO it was a great year at Bruichladdich. There are a number of very fine all bourbon matured one's too.
I've only had the pleasure of having two of the '86 "sherry-monster's"
"Country Life", 15yo, 46%, Dist: 1986, Bottled sep 2001, #511 of 800 from Oloroso sherry-butt no. 356
"Baraille", 18yo, 54,4%, Dist: 05.02.1986, Bottled 2004, #406 of 500, Fresh sherry cask (only available at the distillery and only for cask owners. 50cl bottle - a bit expensive)
Sadly both emptied - but what a treat