That's just not true. A does not equal B. It depends on a number of factors.
Some tires are more camber hungry than others. Some cars either due to orignal assembly or because the rear has been raised, have trouble getting much positive caster.
Generally the most camber hungery are competition tires. But with competition tires, its always easy to find out the manufacturers recommended best working range. Then on the car, work out the best tune with shoe polish and pyrometer.
