Originally Posted by Dos_Locos_Brewery
...you'll need to bump up the amount of specialty grains.
+1 on that. OR, you could do a mix-n-match. Instead of 100% Crystal 60L, use 50% Crystal 40L and 50% Crystal 80L. Flavor gets a bit more complex that way.
Also, how fresh are your grains? Have they been sitting in a bag, cracked, for a couple of months?