4 clicks is the adjustment spec. If the car holds on 8 clicks then leave well enough alone. You only need to adjust when the parking brake does not hold the car when the brake is set and the handle cannot be pulled up any more.

The goal of 4 clicks is to be sure the brake shoes release while still giving ample ability to continue working over time. You want the brakes to fully release, and if it takes at least 4 clicks of the ratchet to set the brake well enough to hold the car, then the brake will be released when the handle is put down. If you yank the handle to the top and the car still rolls, then you adjust according to the procedure. And, the parking brake only has to hold the car with engine off, it might not hold the car in D or R with the engine running.