I used a Wilson Combat spring kit in my 442. It did significantly reduce the pull, but I also cleaned up the rebound slide on a stone at the same time and dryfired a bunch to help smooth things out. I do not recall which rebound spring I used ( IIRC, it comes with three weights). The Wilson kit does not include an extended firing pin like the Apex kit, it's just a reduced power mainspring, and the different rebound springs.
After I installed the kit, I shot a bit of Tula steel case Russian junk (poooooor extraction!), and some CCI/Speer ammo, to test out the "will it still pop hard primers?" question. It did not then, nor has it since had a failure to fire, with 135gr Gold Dot, 130gr Ranger Bonded, or any of the various other ammo I've fed it, including Winchester ball/wadcutter, S&B wadcutter, and a bunch of various handloads of my own with Winchester and CCI primers. Round count is probably north of 2500 rounds now, I have not kept close track.
I'm surprised to see a few negative comments about the Apex kit, because at one time, it was the #1 go-to recommended kit for a J-frame here on PF. As with anything... its good to verify function after making changes, not matter what parts you use.