Lenno - Since the 7 year olds are wild simulated, I'll have to let them go until they are at least 10 years old. I may let them go a little longer. The 3-6 yr olds are woodsgrown, I would like to start digging when they are about 8 years old. Depends on the market, how they look and what I can get for them. Some of them I will probably let go to 10 years old.