Hi Gib,
Your situation sounds structurally, remarkably like mine though it also sounds like you're having more pain in activity than I currently am. So it's worth noting that Dr. Su told me that, though I could certainly wait, if I was feeling too limited he would do the surgery. Certainly high performance athletes have tended to pull the trigger sooner than others as even early degenerative changes have profound effects on their lives. If, as you seem to be implying, using the elliptical - one of the less punishing machines - is difficult, then perhaps you're already at a point where your hip is saying "okay, now" regardless of what's appearing on x-ray. Btw, (and again, pass the grains of salt please) I've heard that x-rays can sometimes be misleading and that the doc sometimes finds more damage in the joint than was revealed on film. It does sound like a HR is in your future, just when is the question being debated. The issue, I suppose, ultimately comes down to quality of life and the anticipated demands of have the surgery and recovering. Which brings us back to Dr. Su again. I hope he can shed light on your situation.
Steve