Primo 77 ET looks like a very good bull, and I think he will sire some very nice offspring. It has been mentioned that he has a big square hip that comes from being sired by Primo, which is probably true, but I would also suggest that his dam's heritage contains some tremendous thick topped and big hipped cattle.
Don Cagwin purchased this bull's grand dam from me, at Canadian Western Agribition, in 1995. I was standing in line with her and her heifer calf waiting to go into the ring for the Grand Champion female class. This cow was Huberdale HB Shadra 76C, and she had been named the Senior Champion in the show, and was later named Reserve Grand Champion female. Don came along and asked me if I would sell her and he offered me a very good price for her. Before the day was done, I had sold her to him. Shadra 76C has been an outstanding donor female and the last I heard, she was still producing at Caney Valley at 16 years of age.
76C is sired by Huberdale Benchmark, who was one of the best bulls I have seen, and he sired a bunch of excellent cattle. He was a son of Dividend's Impact and his dam was a powerful daughter of Highfield Irish Mist. He was horned so he never got used as heavily as he would have been had he been polled. He was also more moderate in frame than many other bulls of that time. He was probably the thickest bull I can remember from that time. Benchmark daughters went on to become some of the best brood cows in the Huberdale herd.
There are a bunch of excellent cattle behind this bull. He should be a breeding machine!! Good luck with him!