I have had excellent results form the clubby semen that I have bought recently including WMW, Monopoly, Walks Alone and Tyson. It came from either ABS or Matt Lautner. I think it makes a lot of difference who you buy the semen from. The guys who are in it for the long haul are going to do quality checks and only sell good semen. As far as young bulls producing freezable semen, bulls on a good feed program are going to produce viable semen sooner that bulls run on pasture. So, yes, it is possible for yearling bulls to produce quality semen. It it up to the owner of the bull not to misrepresent it in order to make as fast buck.