Herefords can do ok if you find some from this area. Otherwise it'll take them about a year or more to acclimate. We have some friends that raise them, but they always have a pretty long waiting list for heifers. If you've really got your heart set on star 5's, the best way to go about it would be to get some Gert females and put a Hereford bull on them. The Gerts would handle the humidity a whole lot better, last longer, and you would only have one Hereford to mess with! Be prepared to take a huge beating on the steers, though, if they aren't extremely thick. We've always done well on our calves at El Campo. But ours are black, #1 Brangus calves. Black still brings a premium! And the cows really do a good job. If you went with Braford cows, you couldn't go wrong putting a cleaner made Brangus on them. I think a Gert would give the calves way too much ear, if you're worried about making any money on the steers.