If I remember correctly Graf has always had a more aggressive stock profile on their runners. I want to say it is a 22' profile. I think most other goalie runners come with a 28' or 30' profile.
I remember reading about Price having issues switching out of the Graf runners because he was used to the more aggressive profile and he felt like he was on skies with the Step Steel. They tried to match the profile to his Grafs. But he ultimately ended up back in the Graf cowling and steel.
Also, I always notice the toe and heel of Graf runners to be more rounded than any other brand. This likely adds to the shorter blade feeling of the Grafs.