A reference point is the PIN ROLLER system that bypasses all the usual construction problems. It offers reduced friction with zero wear at the contact point with the shaft while simultaneously distributing the load received from the shaft to 3 points.
Two contact points in the cassette and one point on the hook, which now receives a small part of the applied pressure and not 100% of it. Thus, the hook exerts much less pressure at the contact point with the trigger, resulting in the pressure we apply to the trigger to release the shaft being much less than that of a classic inverted mechanism.