Yes I have found that myself. It is amazing how you go to a major gun shop and no one seems to understand what you are asking about. Fun you mentioned blue-several told me yeah it's blue, meaning blueing. Oh well, prep work prior is important. Enjoy your new shotgun, I am jealous.
I can not stress how stupid people can be. I called shops before I'd go check out shotguns, and several said they had the Sporting Clays Model...WRONG. Bring your smart phone or what ever so you can show them what you want. The Blue 400's, well to most guys it is either camo or blued, and you ask about the anodized blue receiver and they're like "sure, it's blue". Check the tags, do what ever you have to do. You will pick up a field model and they are totally different in feel etc., vs the clays model.
good luck,
wg