There are reasons to slow down on a new barrel. Mainly getting baselines on case to chamber interaction. Also fouling patterns,and general ease of cleaning,along with seeing what this new barrel is trying to tell you.....
Slowing down and observing=good
Thinking you're somehow effecting,or managing barrel steel= ehh,not so good.
Slowing down and observing=good
Thinking you're somehow effecting,or managing barrel steel= ehh,not so good.