Using Pre Exhaust Techniques in a Chest Press?

The idea with the pre exhaust was to first do an isolated rotary exercise for that target muscle, in this case, the pectorals. And then go immediately to the pressing exercise, the chest press. And now your pectorals are pre exhausted, or pre fatigued. Now when you consider the relative strength of the pectoral muscles compared to the anterior deltoids, an the triceps, now the triceps and the deltoids are stronger than your pectoral are. So those weaker link muscles of the arms are no longer the weaker link, and can force those target muscles to deeper levels of effort and infatigue.