Thank you.I just read everything...lol. Anyway, it sounds like it's doing what you want it to do and I wouldn't do anything if it's not giving you a hassle. It all starts when you try to make it better.
If you want to change out your recoil system, weigh your buffer, I bet it's 3.4-3.8 oz which is H buffer weight. Most 308 shorties are about the same weight as an H buffer.
I use an A5 tube and a standard carbine buffer and spring because parts are common and I have a little better recoil than a shorty. I use an H2 buffer and heavier-ish spring because it's an easy button, not because it's the best but it works for me. IMO, the easiest/best recoil solution would be a rifle extension, buffer and spring. They're designed for that and will probably be a lot softer shooting.
@KurtM is right on the gas, most are probably overgassed so I wouldn't mess with that. The numbers I threw up (~.093) apply to rifle gas for an 18"-20", .750" journal, and probably throw on an adjustable GB. I violate this all the time which is why I use an H2 buffer and heavy spring to make up for blowing off stuff already known.
Anyway, if it's working, I'd leave it as is. You can always betterize it later. The one thing I'd change on that whole setup is that teeter-totter scope mount. If you've ever seen them on a slo-mo camera you'll swap it; the shock/vibe frequencies transferred to that scope is like a tuning fork. You can sell it to someone on OSA or donate it to Rickn or something. There are affordable mounts that are way better.
I have 2 of those mounts. I was told they were better for a gas set up, I was told lies.
I’ll go check out the video.
What do you prefer as for a muzzle device other than a suppressor.
This one belongs on my bolt gun.