
Ah you would think so but when a dog of bitch wins it's class and goes in the challenge for best of sex, the judge sees a line of dogs at various stages of development, with only Limit and Open likely to be at full maturity.
He may then see your immature exhibit as outstanding for it's age, and choose to make it Best of Sec or Reserve Best of Sex.
Now this same young unfinished exhibit when it appears in the Open class will be the odd man/woman out in a class full of mature specimens.
This is often the reason some exhibitors will put away an immature exhibit that has had a fantastic puppy/Junior career, as they feel ti does their exhibit a disservice to be seen being regularly beaten as may be the case the following show season against all mature exhibits.
Others of us will continue to show for the experience and the fun but accept that the results will be less good, but may just do fewer shows with that exhibit.