Just wondering if anyone has used the Grandmaster sexed semen and how their conception rate was with it ? I think some bulls may tend to work better than others with sexed semen but I haven`t heard one way or the other about Grandmaster. He is a pretty popular bull surely someone on here has tried the sexed semen. What are some other homo. black and polled Simmi. bulls that have sexed semen available that do work well at a reasonable price ?