This malt bill looks like a great way for me to go. I have been brewing a series of single-hops pale ales. 2.5 gallon batches: 5# 2-row, 1# crystal 20L & then some sort of "C" hops (Cascade, Centennial, Chinook, Citra, Columus, Amarillo or Simcoe). Well the Citra, Amarillo and Simcoe didn't fare well by themselves. The Centennial was the best, followed closely by Columbus, Chinook, and Cascade.
Next I am going to start mixing the hops like you have done. I think I will use a blend of the malts you used too. I really want to mix Centennial, Columbus and Chinook.
Thanks for posting!