everyone of the heat wave sons breed different...thus, q dog will add muscle but he may hurt you in front end and be off in his hooks to pins...thus, the cow must be good in those areas...carnac has been about the best but he is not sound...thus, the cows must be sound...he can leave some neck too...monopoly is too expensive to experiment so use headliner...he is a good bull from what i have heard...most heat wave clones do not breed like the original or heat wave 1...heat wave 100 is a new full brother that may work....immortal has been working...has great front and big hip...unforgiven has been working well too...hope this info helps...