I've read that cross drilled on a DD can develop cracks. When I got mine from DC they talked me out of them and said unless I have a road racer, its not worth the extra cost and potential to crack.
He did advise that any shop can turn them but the have to turn in smaller cutting increments, VS one large cut.
I went w/ the Hawk due to their specific design, they build pads for racing and HD, police, ambulance use etc.. A good friend had them on his police F150 and we went through factory rotors all the time but mentioned the pads always held up well to pursuits. Minimal fade and solid stopping power.
@ least you got good service, thats an important part of running a solid business :rockon: