On Oriental forward Balkans, the ages improves the Orientals and irons out the Latakia. I opened a tin of McConnell Oriental I had in the back of the closet for about five years. All that was left of the Latakia was a slight, smoky leatheriness, it was phenomenal. Blends like Oriental, Presbyterian, Exotique, White Knight, Durbar or Peretti Royal improve on a longer line than Latakia heavy blends.
In the heavy Latakia Balkans, I think a little time helps get rid of the raw, sooty sometimes acrid edge to the Latakia, but not so much age that fades.