I second I-80. WMW worked on my Char x Simmi cows. If you don't mind thinking outside the clubby world, I have really liked my Step Up and American Pride calves. Definitely some of my stoutest and hairiest-even out my slick hided Simmi cows. I have a Monopoly x Dream On cow that I really like too. Calves are still fluffballs no matter what the sire is.