Had changed the striker before...the total moving weight is the striker, striker guide, and spring...that runs something near 94 grams (a bit more than 3 1/4 oz.). By reducing the striker and spring guide, its down to about 61grams (about 2. 1oz.).
Have no idea what the new spring came out of, went to my nephew's box of paintball gun parts and picked out a likely spring. Stiff to cock (possibly a little stiffer than I'd like) but smoothing and not too stacking.