We only use AI bulls we have seen in person and like to stick with proven genetics, so we are pretty limited. We have used both Wulfs Nasa and Nobel prize very sucessfully over the last 10 years. I have a red fall yearling bull sired by Nasa that will make the trip to Louisville next fall, and maybe Denver after that. Both bulls have always given us great performance, and excellent docility. Nearly every female we have has one or both, sometimes repeatedly, in their pedigrees. If you do decide to go with either Nobel Prize or Nasa, call Wulf directly for semen (Nobel Prize is not on the open market any more, and Nasa supply is limited).
We are trying out a new bull sired by Wulfs Warrior, purchased from Spring Creek Limousin, so we will see how that line falls in.
I like the look of ROMN Deadwood also, he's on our short list lately.