OK, here's the result of a long, long think and research. I finally decided to go with the M Carbo "Performance Upgrade" kit for my Hellcat OSP. I got a new trigger with adjustable over-travel, and a new Titanium striker assembly, all necessary replacement springs, etc. All the upgrades came with full instructions, including how to set the over-travel to your specific liking. Before I even started, I measured the trigger pull weight several times to get a good average (somewhere between 4+ and 5+ lbs. ???) Was able to swap out the striker in about 30 minutes ... piece-a-cake! The trigger took a little longer, but having everything needed, including a mold to hold the trigger and link while setting over-travel and providing a visual indication of how much/little you were setting. Took about an hour of actual replacement of parts all while 'start/stop' watching a video from M Carbo to ensure not doing it wrong, but went through it with no mishaps. Now, I haven't been to the range with it yet, but planning with any luck later this week. But just feeling the result of the new trigger has really got me excited. As bad as the original trigger was ... this one is, or at least feels that good. Avg pull weight is just a tick >3.5 lbs, but consistent as you'd want it to be. No drag or grit as you're coming to the break, and the break is really clean. With the less over-travel it really feels good. I can't hardly wait to try it. I'll let y'all know how it actually performs. So for now, I can't say anything but good about the M Carbo kit. jj