"he's only here for a short time to produce a few heifers. and by the time i get where i'm trying to go he will make up less than 1/4 of the genetics. i've got a son of this bull on the ground now that i hope to use for my terminal cross bull in a couple of years if he fills out like his sire."
I am confused. Doesn't take much.
You have this BWF bull and you are going out of your way to use the Hereford bull "on a couple cows". And you have a son of the BWF? "From the picture", the BWF looks like twice the sire of the Hereford bull. Obviously "we" can't really SEE the Hereford, but what we can see, he should have been cut as a calf. You have a good BWF bull now. Use him on everything if your goal is to have the best calf crop possible. You want carcass animals from what you are saying. You will be going backwards with the HFD.
I guess you are having fun with your breeding program. To each their own. Lots of work, we might as well have fun. But, I do like to make money. And producing the best calf out of each and every cow is my goal. I breed for breeding stock, but same goal. Best calf to make money.