Fuzzy is right. Ebay has several flat ground "die press" springs that will fit inside the factory spring. Run a (short) second spring to get the extra umph you need. Just long enough to compress at the very end of the cocking cycle.
I'll bite. Can someone share the dimensions of a spring to be utilized as an "inner spring" to the OEM hammer spring? I have three Liberties and would like to keep each one working to the best. Thanks ahead.
Change out the Orings with a kit from Capt Orings. I did and mine doesn't leak a pound of pressure.