I’m just about committed to the JP trigger control group. I’ve watched the video numerous times and am anxious to give it a try. I have a retired machinist friend who has all the tools and has installed AR triggers before. It could be a wonderful afternoon installing a trigger and addressing “diversity” issues as well as reloading 500 or so rounds with H335 powder and 55FMJ bullets.
Interestingly, I have gotten really good (less than 0.3-in) groups with both 40 and 77 grain bullets. Most rifles only like particular combinations and tend toward preferring either heavy or light bullets, but my JP-15 does well across a wide variety.