I personally know of 3 dogs with mild to moderate to worse HD who have trained to middle age and gotten at least Sch1 - 2 got Sch3, one of those 5 or 6 times...
Depending on how the dog handles it - it can be managed...
But I have to wonder (and I did initially too) if some really early x-rays were done or Penn Hips and that is why the dog was for sale when you got him (I do know who he is...there is at least one dog on either side who is "known" for poor hip production.....one in 4th and one in 5th.....not a really extreme high risk breeding, but there is risk in there
Sorry Richard - you really have rotten luck!
Csabre Sch1, Hexe Sch2, Bengal, Komet, Kyra, Kira HGH & Kougar v Wolfstraum ~ Ziberia BH ~ Danger Sch1 RH SAR ~ ATB~ Kougar Sch3, Kyra Sch3, Cito Sch2, Alice Sch1, Kelsey CD, Ret ~ Basha - Fenja Sch3s