I love the idea and I do have the weights but I am not much of a tool maker.

Here is a side tangent for those of you who test spring weights and those of you who change/replace springs often or across many guns:

What are you doing with the springs that are coming out?

So far, I’m just sliding them in the open package from which I’ve taken the replacement spring along with a note that says “original spring from 5906, swapped out xx/xx/xxxx”

A worn out 14lb spring isn’t exactly a good idea for a pistol that needs a 10lb spring.