Top lever spring
 

The thinner you grind lengthways , Does it make it easier to open ?

Yes, but the one I did I took as thin as I felt comfortable going and it is still twice as stiff as the original was before it broke. But one has to consider the old one had been compressed a hundred years.

You get yours from Dixie ? I wonder if there was a pull type tool they used to fit their springs with., sorta like a trigger pull tool

Yes, from Dixie. PGCA member Harry C. advised me they were less than half the price at Dixie as they were at Galazans. Harry also gave me good advice when undertaking the venture.

I could have kept grinding mine to make the tension less, but at some point I figured I would weaken it enough that it would break, so I quit when it was quite stout. Filed the locating pin by hand. Used a Dremel tool with one of the little round sanders on it and it moved along pretty quickly when grinding it to fit. Keep it beefy at the 180 degree curve in the spring, as this is where they break. It's in a 16 that I shoot at doves so I did not want it to break after even a thousand openings.

Grind the spring along its length. Going up and down will weaken the spring. Small needle nose vice grips are great for fitting. I grind my springs the same thickness as the one that broke.

Midway sells the Galazan spring for $24.95. The Dixie spring is $6.95.

When I made the Lefever spring I ordered 3. Definately messed up the first one, but have a spare now.