serious question: what are non ped whippets or whip x greys like on tough ground, im on about Dales type land with rocks, boulders, very steep, hard on feet i would expect etc. i dont care about opinions on stamina etc, but simply, could they manage a life on that type of land without serious injury? i know any dog is, but are these more prone, are they weaker due to just being bred for track?