Yeah. Skip it. Give it a wipe before you shoot it and then have fun. My argument to this guy at the range, should he have defended the practice, would have been to ask how well it would have shot if he hadn't 'run it in". He wouldn't be able to answer. Nobody can. As I have said in the past: Factory rifle have their cherry popped before the rifle is boxed. Custom guns get test fired (one would hope!) and in your case, they go to the proof house for legislated abuse. I think the ship sailed on running it in. Additionally, what are you spending good money on if the maker tells you to 'run in' the barrel?? When this fantasy first surfaced in the US, Douglas Barrels said their barrels didn't need any such treatment but a person was welcome to do it. McMillan Barrels, iirc, called it an outright scam.
The funny thing was that when I got my DPMS AR-10, they weakly suggested looking up various 'running in' techniques and using them on the new rifle. I ignored the suggestion. The rifle shoots fine.~Muir