Have you guys ever actually tried reduced range of motions?
sure, partials are useful to break fast sticking points. we used to use them all the time on the PL team at my old gym in PA. power lifters use them all the time.
maximum force can not be generated across the joint unless a full rom is used to create maximum tension on both ends of the muscle. it's one of the basic principles learned in exercise physiology and the physics of muscle contraction.