Thanks Bruce, I watched/listened to all three of the presentations. I remember seeing the Brewing TV episodes, just hadn't refreshed my memory. Your slide presentation with audio was helpful too.
This did remind me how good Brewing TV was with Dawson and Keeler. Those guys had chemistry.
Now to find out info about the firkin festival.
Also, I've done a version of this with the 5L metal minikegs, its a bit of work for 10 pints but its a way to experiment without having to drink 5gal at a pop.