Didn't the MARC data from several years back show Shorthorns to be among the best marbling of any of the breeds tested? I'll have to get out my old issues and do some research. I think Sho-Me farms did a lot of shear testing with the University of Missouri and had some data on the lines that tended to at least be more tender. Lots of considerations, lots of research to be done. I'd like average size calves that come easy, have a good growth rate, turn into efficient gainers that marble well and top the sale. The heifer mates need to be easy keeping, good uddered, milk well, calve easily, good natured, and pretty to look at, all in an efficient package. And they need to be polled and defect free. Some of you might like red ones although I prefer roans. That's asking quite a bit. When I get it perfected, I'll let you know. Or, if you get it perfected, let me know.
In my opinion, there were more muscular, better milking lines in their day than the Leader 21s. They were sure tough to beat in the showring, though.