Actually there are Black Herefords that are 7/8th, 5/16ths, and more...Hereford. As much or more Hereford, as pb Simms are Simm. To be a registered Black Hereford, it must be 5/8ths or more Hereford, and 3/8ths or less Angus.
You are right about the black baldies. A black baldy is... or...