There is no reason why he wouldn't breed. He'd just be more prone to injury or infection due to the likelihood of his sheath getting scratched of grass seeds getting in the prepitium. He is just higher risk.
The bull is masculine and that is more than half the battle won when it comes to Brahman cattle. Very sound. Very good hindquarter. Not great in the midsection and it affects his balance. Sheath is really not good. Here a y type sheath like that would be a disqualification.
Very good post. I've posted my reply before seeing yours. You've explained it very well and in good detail.
There is hope yet for the next generation if stockmen.
The bull is out of balance and very long fronted. Add to that the light muscle and the dryness of the gaskins tells me his daughters will lean towards a very angular type. Combine that with the complete lack of spring of rib and the odds are very much against them being easy doers.