I judge and I certainly wouldn't view it as an annoyance,I would see it as supporting your club.I always enter more than 10 mice when I am showing,some I think might have a chance others not.The only thing I take a dim view of is showing out of condition or poorly mice and you would be surprised how common it is.You also have to balance your decision against completely wasting your time and money.A self black with a tan vent for instance would have absolutely no chance and you wouldn't get a critique because it wouldn't be placed.Likewise a cream or white with a thin tail would have no chance.However a marked or some aovs could be placed or even win with these faults.In your case if it's doves you are talking about there is every chance you will be the only exhibitor entering these and would therefore get a critic.A tan vent would be considered quite a big fault on doves but a critique would likely give you an indication of how good a colour you have or haven't acheived.I say bite the bullet....