

Upon further reflection, spring stiffness does not care about length.
It does. If you have two springs with the same diameter made from the same wire, but one spring has the double amount of coils, i.e. the double length, the longer spring will have half the stiffness (or the double compliance) of the shorter spring.
This design would reduce the effective spring stiffness by half (and therefore the force)
In fact it’s the opposite. The “dead” coils at the end and in the centre increase the overall (compressive) striffness of the spring.
The most obvious other way to reduce stiffness would be reducing wire thickness, which could reduce reliability.
Slightly increasing (or decreasing) spring stiffness by changing the wire diameter is much harder to do, as the diameter of the wire enters the stiffness factor by the power of four orders of magnitude, i.e. increasing the diameter from 0.4 mm to 0.5 mm increases the stiffness by factor 2.44. Thus, it’s much simpler to introduce ‘dead’ or fewer coils in the spring to increase its stiffness when the outer geometric design properties (spring diameter and length) are given by the design of the pen.
The problem is that many of the Christians in the US aren’t Catholic. Thus, it probably won’t help if the pope excommunicated them.