The longer I am in this game the more I am convinced that Angus is the way to breed heifers. I have had Witchdoctors from 75 to 120 lbs, not consistent enough on heifers. Ali calves generally come pretty easy, but like others I got pretty poor conception with it, although they were first service Cidr induced heats and I think that may have played a role. i would not be afraid of Ali on Angus hfrs that carry low birth on their side, but I did have a 95#+ bull calf on Friday that was a really tuff pull on a sunseeker/iceman heifer. Proven Angus bulls that I have used or bred include, Woodhill Mainline, Dr J Analyst, New Design 878, and BC Matrix. From a proven calving ease, growth and maternal standpoint, 878 is really hard to punch a hole in. The calves are not the biggest boned or stoutest muscled, but come easy and grow like weeds. The females also make really nice functional cows. For simmental I would reccomend Dream On or his son High Voltage.