The guy down the creek had his knee done by the same doctor and he is a doctor and he is doing great. I just think in my case I got on it to soon. Plus the doc had a bad day. But it is better as far as pain goes. I think by this fall I can do a backpack hunt. Oh it does click like a caribou. However my wife Bertie said she can't hear it just me. Jerry just wait until it gets to where you can enjoy hunting and it hurts to much and then have it done. Your wife will like it. Mike