From an interview with Pease:
Q: Which of your blends are best suited for aging?
A: From the very beginning, I have always designed my blends with aging in mind. Barbary Coast, being so heavily based on burley, is probably the one blend that will benefit least from long cellaring, though the flavors WILL continue to meld over several years, and there's enough virginia and perique present to offer some significant change. The cigar leaf in Robusto may peak after 5-7 years, but the Virginias and oriental leaf will continue to develop increased complexity. The heavier latakia mixtures will evolve a certain softness after five to seven years, but will continue to become more complex, so whether or not you'll enjoy them old is really a matter of taste. Those that are less dependent on the smoky stuff will go much longer, continuing to develop for many, many years. All the VA based blends, especially those with perique in them, will improve for 10, 20, 30, 40 years or even longer, though after a while, they'll slow down. Ask me again at the turn of the next century…