Pieces of 8 released on Friday and Mastermind on Saturday. I don't expect either to last the day so I'm debating which day to make the 2 hour drive.
Just my two cents but pieces of eight is not "in demand" like any of he more well known beers that folks will be lining up for that weekend. And Brandon isn't really a major stop en route for most folks. Basically unless it is a small batch that is brewery only you won't have too much trouble finding some. They have had cases of it at hunger mountain when it's been released previously. But it is Brewfest weekend so all bets are off.
never had Second Fiddle, but I think Mastermind was over carbonated and harsh. That being said Bennington may get same.