My only gripe with PSA is they do not dimple the barrel for the set screws and they are installed dry.
The Faxon barrel I had wasn't dimpled either.

Easy enough to dimple a barrel and use knurled set screws with Rocksett, I have a couple different sized jigs.
I didn't need to dimple the Wilson Combat barrel so that saved me from buying another jig.

The 14.7" FN barrel upper I got from PSA is a nice upper, if they would have just dimpled the barrel it would have been solid. A little attention to details goes a long way.
I haven't gotten around to digging the pin out of the flash hider yet, so I just make sure they are tight.

Triarc has a gas block with a pre drilled hole for a coil pin, comes with a pin and knurled set screws for about $50.
Should be solid enough with that.