As someone who helped raise the above bull, and broke him and a number of his calves in, I can quite confidently tell you about him.
His daughters have only started calving themselves in the past two years. If you want to know what they've done, look them up. The details at the bottom (7) don't reflect the number of daughters in production, just the ones that sufficient data is available to analyse.
The Jackaroo daughters are, for the most part, moderate, easy doing, muscular cattle. I have seen few bulls with better calving ease, and his daughters are spitting out calves just as easily. The udders are perfect. They are not what I'd term big framed cattle. They are exactly the type of cattle both feedlots and replacement female herds want.
His mother is, well, the only way to describe her is tremendous. Says it all.
Jackaroo's temperament is second to none. I have never broken an easier bull. In fact, I wouldn't even say I broke him in. I put the halter on him one day (at about 13-14 months old), brushed him and fussed over him in the pen (usually we do this in the cattle crush), then he went back out in the paddock (no leading). We brought him back in about 6 months later to move him to a paddock that was difficult to get to. I threw the halter on him, and led him out to the paddock no problems. Not long after (when he was 2), I walked into the paddock with a feed bucket, threw the halter on him, and we loaded him onto a horse float to go for collection. To this day, he has never been to a show.
Testament to his fantastic temperament, after being away for about a year, I went to visit last July and walked out to the paddock he was in, straight up to him, and gave him a nice scratch between his back legs. He didn't move and inch and when I gave him a hug round his neck he just stood there.