Foxy - his is only young, only just turned 4, so I think that muscling and actually working his hind end instead of running 73469miles an hour would help :P
Cooper and Bracken - No, haven't vet checked him, but we have checked him, all vitals are fine and his back, loins and rump aren't weak. (my sister did a test thing and she passed to check horses etc. what ever it was!) so she knows how to check everything.
Navada - Long in the back?! Really? I thought more short then anything... but I guess i've been looking at him in real life not just through photo's. And yep, heaps of different terrain around here!! (:
Cooper - We do our own horses feet, this might shock some people but, I hate shoes... so once he settles in and get's used to this way of living, his shoes are coming off... they are slightly to long at the moment also. So we will fix up any off angles barefoot style! (: (all our other horses are barefoot and they have perfect hard hooves)