Anybody done a functional plier spring mod?

[Spoonrobot]

I'm thinking something similar to the spring-loaded system on the SOG CrossGrip/CrossCut. It seems like it would work fine with a butterfly system like most of the Leatherman tools. What would be a good medium to use as the spring? I figured that I would use a lot of excess material, pound three nails into a piece of wood and then bend the material around the nail anchors before fitting it to the tool. I have some extra battery contact springs from old Surefire lamps that look thick enough to work.

The sliding plier Gerber tools have potential too, I just haven't thought of a way to drill/cut a relief to fit the spring into the rear of the plier assembly.

What say the modders?

[J-sews]

Making a proper spring is more art than science. 

Starting with the proper grade of steel is critical. Am I understanding that you have a suitable piece of springsteel wire then?

[Spoonrobot]

I think I have a good piece but saying that alone may mean I have the wrong thing. Anyways, I'm making my little jig this week and will bend it when I return home next week.

[J-sews]

Best of luck to you then! Let us know how it works out

[CQC-7]

I dont know if it will work because of the larger handles of the larger tools.  That spring has to be really tough.  Good luck man.