For giggles, I decided to pour my 3/4 full bottle of Thomas H. Handy in my decantur, with the hope that the air time would make it more palatable. Not that THH isn't enjoyable on its own, but it's never been one of my favorites per se. So it's been sitting in my decantur for probably 2 months now, and last night I decided to take a pour. Holy hell, this stuff is amazing, particularly with a splash or two of water. I can easily say it fell in my top 10 category. The nose was full of caramel and spice and the mouthfeel was an explosion of more caramel, vanilla, cinammon, and toffee, with a viscous finish that lasts for days.
I also noticed there is now a brown film sort of floating in the remaining whiskey in the decantur. I noticed this previously as I was nearing the end of a bottle of WLW that tasted about as good as this. I wonder if there's something to that brown film that has an effect on the viscosity, because normally, I haven't noticed either whiskeys being quite so viscous.