
In my and other numerically small breeds you may also choose to enter more than one class to have more competition, or in the case of youngsters to have any chance at JW points.
Both my champion girls that have JW's were being entered in Puppy, Junior and Post Grad, and most times only won points from Post Grad.
My girl with most CC's never got her JW as you needed 10 points from Open shows at the time. She won her first CC at our breed club show after being shown in and winning 5 classes, she was moving better and better with each class, and I don't think she would have got it on her performance in Junior alone.
By winning several classes it also cuts down your competition in the challenge, on this particular occasion a friend had also won 4 classes, and was second in one of the ones we won, so there were potentially 8 fewer exhibits in the challenge.
Of course at general champ shows we rarely have more than 5 classes per sex, but it isn't unusual to only have three exhibits eligible for the challenge.
It is no fun winning small classes, and people are as likely to drop out when wining first and seconds in classes of one or two as they are in breeds where you rarely get placed, people do like to think their win was worthy, and no matter how good your youngster may be the victories are rather hollow, yet the exhibit may be to immature for high honours, so being placed in stronger/older classes gives some satisfaction compared to being able to stand in the challenge.
Personally I think grading in both numerically strong and numerically weak breeds would be a good thing giving an exhibitor an opinion of the 'quality' of the exhibit, in addition to how it compared to the rest of the class.