i was going to start making my own replacments, and im torn between herf/angus, or gv/herf. if i went with the gv/herf i would use an angus on them, and no replacements would be kept. and the herf/angus i would use some continental breed. i guess what im really asking is which one would be the all around better cow to have around as far as longevity, fertility, and just an all around good cow that im going to get a lot of years of use out of..