Any specialty beer company whose stated goal is to tap mainstream drinkers is worth a regular strategy visit. I'm talking about Duvel Moortgat USA, which just wrapped the 3,000-strong Belgium Comes to Cooperstown annuality at the lush brewery Ommegang in upstate New York. Your editor sat with DMUSA chief Simon Thorpe, Duvel's Daniel Krug and a plastic pint of Ommegang Abbey Ale to get what's going on in the second half of the year...