It really depends on your goals with the resulting progeny? I have personally lined up JPJ up to 4 times with no problems. I prefer a cross with two shots of JPJ. I like some of his sons progeny more than his own. If you just want a functional low maintenance replacement than use a Canadian bred bull or Kaper 4508. If you want show steers Farrers "hear me now" bull or a red demand/red reward son. The trump bred cattle will offer great potential for good show stock but, also, great potential for problems and inconsistent calves. My suggestion is find an example of what you want and see what bulls look like that. Then compare them to your cow to see which have the greatest possibility of getting you to that point regardless of their relatedness.