RE: shotgun/ left eye dominant
Left eye dominant/right handed myself. As a youngster dad tried to train me right but left just felt natural when shouldering a gun. He then deceided why fight nature, my first gun shotgun was 870 20 ga pump and haven't owned anything but RH shotgun since. I have never experiencedproblems with ejecting on right handed guns. I own 870, 1300, benelli nova and 7600 CF still today.
CF bolt I will only buy LH rifles now.