I have 6 steers that are about 2 months. And another 15 that just hit the ground. I want to implant and sell the older 6 in November, I have never used implants. My question is which one is best? Calves are about 250-300 pounds now. Some are brangus x angus and some are full blooded herfords. Or should I just wean them and not implant and sell ALL calves February/March when I will make more money ? I have free grass alfalfa pasture November -March. And can supplement if needed.