I am VERY happy to report on my first range trip with the new 04 spring. zero failures with both Fed Champion and WWB. Noticed that recoil might have even been a tad lighter too! Also noticed that spent cases were no longer hitting me on occasion. If I have been "liking" it the last few trips after weakening the original spring, I LOVE it now! I feel extremely comfortable with it's performance and I now feel I could trust my life to it if need be. I am going to the range again today to shoot with it again. I honestly feel that anyone having any issues with theirs, should make the call, and get the new spring and try it out. Oh and by the way, also shot about 25 rounds of American Eagle 124 gr ammo, still no issues, spent cases ejecting away from me instead of occasionally at me. Why they didnt just wait until this new spring was available, to release the Gen4 G19, I dont know, but IMHO they could have avoided considerable amounts of bad press and upset customers had they done so! My G19 Gen4 now ROCKS!