Regarding bolt lift I will tell you it was different on the two barrel extensions I had. One was harder and one was easier. When I measured them it seemed like the one was a couple thousands longer than the other.
In addition after probably 500 dry fires and 240 rounds fired it has lightened up a bit. I think they wear it.
I also agree with cleric about the weight of the rifle having something to do with it. It’s light so it moves the rifle easier. It’s sometbing you get used to after you do it a lot.
I’ve got over 200 rounds and countless dry fires. I have asked the same question before, but wondering if anyone had more intel. I really want to send it back to get it lined at, but don’t want to waste anyone’s time either