I love the 64 PANs and have several different sizes (Presidente, Imperials and Principe) in my vino for over 6 years. I find that the sticks have mellowed over the years. I have read in several places that these sticks were meant to be enjoyed fresh and I have to agree. If I am ever in a "cigar bar" and they have these, I pick up a few and and extra to smoke that night. Of course the one I smoke is usually to wet but the ones I take home and let rest (not age) are wonderful.
Don't get me wrong, they don't get worse with age...they just mellow out. I feel they don't get any more complex as CCs seem to do with age. Just my