Ultravista: PM me your email address and I will send you my beersmith file for you to play with.
I mash at 156 because The Craft Of Stone Brewing's recipe for Stone Pale Ale, which this beer sorta fell out of, says to mash that high fro SPA. I think they were looking for a bit of sweetness. I don't find AB to be dry. To me AB, SPA, and Double Bastard all have a beautiful sweet, malty taste to them with a rough and tumble hop bite. That said, I may try to mash at 148 or so on some future version just to see what it produces.
Interesting enough, Steve and Greg both suggest that AB is SPA on steroids. But if you look at what we are brewing, it is not SPA. We are not using C60 and C75, Ahtanum and Columbus as we would be if we miscalculated the amounts of ingredients. So why am I using the SPA mash temp? Perhaps they subbed in Chinook for Columbus and used the same recipe, with lots more malt? Dunno...perhaps we should brew that?