he's pretty dysplastic , I've seen worse do well , I think he can do better than that ........ walk him a lot , up and down hills , the more muscle you can get on his rear , without banging it up , the better he'll do .......... I don't see a lot of arthritis at this point , discourage running hard , cutting and jumping , i'd let him trot as long as he was moving smooth..... the less impact the better it is for the joint , but you have to exercise a dog like this a lot ....... I would exercise him as much as he could take without aggravating anything , it doesn't look like he will get sore with proper exercise . if he does , figure out why , what he did , and get him some rimadyl to get over it fast as possible ....... i'd get something like phycox , actually i'd get phycox , and keep him on it forever .............. when he's orthopedically fully developed let him do whatever he wants ........ I can't express here how much I believe a dog like this needs a lot of proper exercise , it is extremely time consuming , but it works ............. as far as folks telling you pups are looser in their joints than adults , there is no truth to that ..............