The last dram of my Glenmorangie 18-year, the older version that is matured exlcusively in American Oak. I think some of it is re-used bourbon casks, while others are new casks.

The oak is absolutely HUGE for what is really a light, delicate Highland scotch-- almost as heavily-oaked as some of the 10+ year bourbons.

The newer 18-year is matured for at least 15 years in American oak, then for at least another 3 years in Spanish oak. I look forward to trying it, assuming that the state will ever decide to carry it at some point...