He is a good choice and I know he has worked well for you. I might use him a little. What I am looking for now is really hard to find - a RED simmental AI bull with good growth and good maternal traits. Near average or better for milk, docility, stay, AND maternal calving ease. Around a 6 frame. Hard to find a red one that checks most of those boxes.
I get pretty good growth to weaning. But our forages here (endophyte fescue and bermuda) just don't give as much growth post weaning (I calve in the fall) in the very hot summer weather as the forages just a few hundred miles north in a little cooler environment. There are some things to help with that here - like feed or ear blood. But, I don't want to do either.