I love nubians! I've also had alpines, nubians, and boer. The straight boers are just to lazy in my experiance. I do have one now that isn't really lazy, but she's spazzy and I doubt would have been much of a packer. My best potential packer is a nubian, I had originally planned to train him, but quit working w/ him after a year, I desided I'd rather have him pack on trail rides, but I didn't get him properly bonded to the horse. He'd follow me to the moon and back, and I'd take him for walks along w/ the horse and he'd stay w/ us! But as soon as I got on the horse, for him it was like I disappeared, and he would get stressed out, he still stayed w/ us, but wouldn't quit crying and looking for me. He'd even swim! I like alpines to, and had one that had potential.