How do you adjust Harley Soft-Softail shock?

Just bought a softtail and was wondering how to lessen the firmness of the shock?

Rear shocks should be adjusted with bike resting on jiffy stand. Loosen jam nut, use spanner wrench (Kent Moore 94455-89 or Jim’s equivalent), turn adjuster plates out (toward locknut) to increase preload, turn adjuster plates in (away from locknut) for a softer ride and lighter loads. Be sure both shocks are set to the same preload position or bike will pull to one side over bumps. Tighten locknut.

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