Parking Brake Cables with Disc Conversion

I'm running a different disk setup, but I got the cables from Doctor Diff. They had the correct ends on both sides and connected perfectly. The issue I have is the parking brake handle throw doesn't match the throw the caliper needs. With the cables as tight as they can be without any drag, they aren't quite tight enough when the brake is engaged, it holds the car, but not as well as I would like.