Finally had a chance to try out Piggy Wiggy's Barbecue in Dunkirk, MD. Very nice pulled pork! They had a nice selection of sanwiches, ribs, chicken and all the typical sides.
Well worth the stop if you find yourself traveling route 4 in the Dunkirk area. They claim to cook/smoke their pork for 12 hours, and let me tell ya, it shows.
I'd still say that Lefty's in Waldorf is number one, followed closely by Any Nelsons in Cockeysville. Piggy Wiggy's is a very solid third (at least for their traditional pulled pork and great BBQ sauce).
Thanks for letting me gush a little. I love discovering a new place like this. It reminds me how much I love barbecuing!