Some say that if you wait until they are older it gives a truer reading as the scores can be higher say at 2 than at 1. So I always choose to do my bitches and dogs near 1.
If its a bitch you are scoring, make sure she has not just had a season. They say to wait half way between seasons before scoring as the ligaments etc, can often go out of shape a bit. Did I say that right!! Oh well, do you know what I mean. They say the score is better half way between.
I have had a mixture of scores, some bitches I have scored near 2 and others scored at 1. I have had scores anything from 1 to 13 from these ages.