Just got done with that 64 Imperial Natural from 2003. Simply put....
WOW!!!! I wasn't expecting much from it from past experiences with aged NC's. But this bad boy simply blew me off my feet. Perfect draw and burn the whole way. Nice white ash and had a thick aromatic smoke.
The first 10 minutes it didn't have much. But then I got hit with a nice cinnamon flavor that did not go away the duration of the cigar. No pepper hints at all. Every now and then I would get a nice undertone of a buttery flavor. But definately the cinnamon was the star of this smoke.
This is without doubt the best cigar I've ever had in my 6 years of smoking. I've had limited experience with CC's, and have yet to have one do what this one did.
I hope that helps Boss Hogg. I am seriously thinking about buying a box of these puppies and letting them rest for at least 5 years. Problem is, I don't have the room right now nor the funds.

I hope you do the same with yours, you won't be disappointed my fellow BOTL.