Blue Boar was something I would see from time to time in the grocery store. I would always pick up a pouch when I saw it. Does it benefit from age? There was a slightly edgy, "rough" quality to it that was part of the charm fresh.
FWIW, Morley's Best scratches that itch for me these days. American Heritage is Close as well, but I like Morley's Best more. I am currently out of Morley's Best, but I have some American Heritage that might be calling to me. Right now ODF in a Barling large billiard is hitting the spot.