We purchased a steer last fall out of One and Only. If your heifer grows like ours steeer did, she will change a lot between the 7th and 9th month. Our calf changed more than any calf we have ever had. he just exploded during that time and transformed from a very eye catching calf to a extremely powerful calf. The breeder only used him on a couple cows last year but due to the results he used him on a couple more cows last fall. I am looking forward to seeing what his new crop looks like this year. Folks that have seen his calves say the calves out of One and Only will catch your eye.