I get a rack of 2 Below sent east at Christmas annually from my brother in Arizona.
Love that stuff. Fat Tire is a nice beer at the ball park but 2 Below is worth seeking out.
I've always thought of it as an ESB with noble-y hops (Liberty or Sterling or both).
I like the clone recipe above, but this seems like a good time to use a darker crystal for the roasted notes, i.e. 2.25# 40L replaced by 1# 90L. But that seems a little dark to me. I'd venture 1/2# 90L, keep the victory and Munich malts and up the pale malt to get your target gravity.
I find Flat Tire to be darker than 2 Below, but I've never poured them next to each other for the comparison. Might be my imagination.