I run Hawk Blues as well, and I've never seen the kind of wear you're describing. I get about the same use out of the pads as I do on the rotors - at least 6 and sometimes 8-10 weekends, and those are mostly doubles. I don't do anything special to keep down wear and I've gone to using the absolute cheapest Chinese-made rotors ($38 apiece) I have found. I've found no discernible difference in lifetime between them and Brembos or other "quality" rotors. The only "problem" is that the dust cap is a little loose fitting (fixed with RTV.) The cheap rotors act just like the good ones - after 3 or 4 weekends they start showing heat checks, which gradually get bigger. When the cracks get close to the outside edge, I change them. Occasionally, they'll even get a single crack that goes all the way to the outside edge, but it's never caused any noticeable degradation in performance.
Maybe your experience is related to the tracks you run? But if so, I'd think you'd be wearing out the pads quicker, too.
Tom Lyttle
Decatur, GA
IT7 Mazda - 2006, 2008 SARRC Champion
ITS Nissan 200SX - finally running correctly
FP Ford Capri - waiting for a comp adjustment
GT3 Dodge Daytona - what was I thinking?
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