Brewed a double batch of Northern Brewer's "Oak Barrel Porter" this weekend and pitched Wyeast English Ale that I built up into two starters. Glad I used blowoff tubes. It's the most energetic ferment I've ever seen. Here's a video.
http://vimeo.com/user5623750/review/53854948/deb8b52af7
http://vimeo.com/user5623750/review/53854948/deb8b52af7