Melvang: note, the primary 2 relevant features of a standard-ish spring, at least w/r/t MX and similar switches, are (1) stiffness (spring constant), and (2) length.
The shorter the rest length of the spring is, the less it needs to be compressed when the switch is in the un-pressed position, which has the effect of making the top part of the key-press lighter. The shorter you make it, the lighter the top of the keypress gets (the bottom of the press also gets lighter, but we can compensate for that w/ a stiffer spring).
If you have a reference spring, let’s call it Spring A, and you find a spring that's a bit stiffer, let's call it Spring B, but initially the same length, then you can cut loops out of Spring B until the top part of the keypress feels about the same as the top part of Spring A, and what you’ll get is a spring that's similar at the top but requires more force at the bottom.
This doesn’t seem controversial... it's just basic spring physics.