Dun, I have 12 PFred babies on the ground from my F-1 heifers, and I am likeing them so far. Had a set of twins on Saturday with the small one weighing #38 and doing great on mom. The biggest I have had is a bull calf weighing #71 at birth. They have been averaging #68. Very lively, and hardy it seems. They have pretty good stretch to them, like weiner dogs with more leg. I guess I am most impressed with the size other than a lack of depth , and how fast they are up and at 'em.