I can't remember if he is reg. or not but if he is you can go to the american shorthorn associations website and look under their genetic testing results list. I'm pretty sure that if he is reg. he had to be tested before they sold semen. Like I said I'm not sure. Hope this helps. ;D
Look for yourself, but he looks to be untested for PHA on ASA website. Pedigree looks free of PHA carriers, as far back as one can see. Smooth's pedigree is full of Irish and very inbred.