Got a young friend who bought 11 eighteen month old bulls about 6 weeks ago. All from one breeder, been running together their whole lives. They’re in a grass trap now, awaiting turn-out on May 15. Yesterday he bought 2 thirty month old bulls from a different breeder, been running together. To minimize fighting, would he be better to just kick new bulls out now or wait and kick them all out onto the cows May 15?