Great question...it isn't the simple trigger issue/fix that I had earlier. That was as much on me as anything else for not checking to see if anything loosened up.
If you go to page 100, and start on post 4,964 and go down to the bottom of the page you'll see where my factory 6.5CM barrel shot okay out of the box, but had/has a significant copper fouling issue - as in after shot #4 I stuck a patch halfway down it and broke a cleaning rod getting it out. I'm at 58 shots on that barrel now, and it just sits in the corner...waiting on me to start messing with it again. I had it looked at, and I'll leave it at that due to the rash of expulsions on this site lately. Let's just say that it still holds copper. I emailed and also called and left a message with AINA. I never hear back.
In fairness though, I have a factory 6CM barrel too, and it hammers with 108 ELD-M and H4350 across probably the widest charge range of any barrel I've owned.
The #1 gripe is essentially being ghosted by the company itself. For two years there were requests by consumers and little hints by the company at things like magnum bolts. Plus items like the gen 1-2 cheek and LOP...it seems like the company is good at making upgrades...but you have to buy the new model (and take a bath on the old) to get them... screw retrofitting. Add in part availability and support for legacy models and it just doesn't appeal enough *to me* anymore to buy another. Not that I don't enjoy my rifle, because I do. Like I said earlier, I wanted one for 20 years.
*****
Conversely, a week ago I found online an like new custom build (decade + old) on an old Prague, OK - built Surgeon 1086 action. I know the gunsmith who built it, and he used to work at Surgeon back in the day (I really wanted a Surgeon back then too). A 30 minute phone call later, and he's not only going to spin me up more barrels, but is also going to be my source for the vice and action wrench so I can have prefits done by him. He seemed just as excited about the project as I am, and actually gave me all of the original build info. He's also the guy who was happy to measure and spin up a new barrel for my AT-X, and now has everything to do prefits for them too.
When I spend several months' worth of disposable income on a 'want' and not a need, I appreciate a little customer service. You're not required to give a shit about me, but I'm not required to make more purchases either.