If it were mine I would probably leave it be. I’m not a choke changer and shoot with the same chokes in my guerini regardless of how close or far away a target is I don’t think choke is the reason I miss anything
I can’t be the only one that shoots the cheapest cartridges i can get my hands on 😅🫣 generally i shoot gb competition in #8 in both plastic and fibre or fblack plastic recently as we couldn’t get gb
Had a friend that done the same made a big jump for his 2nd gun and missed all the baby steps and slowed him down. He ended up back with a miroku and shot much better