3 Seasons back pretty much destroyed the r/side of the collar bone. First doc said it should heal on it's own... 12 weeks later she sent me to the plate and screw guy. This guy says the thing would have never healed (to many dead pieces) thus he proceeded to take a piece of the leg and insert it between two "live" collar bone pieces. Lost a week on the good meds and when I returned the second week he pretty much said do as you please. I waited until I could do some push ups and carry five gallon buckets of water then got back on the KX. Every now and then it "cracks" and I mean loud and I feel like it isn't right but the funny thing is the steel side has better range of motion and seems stronger than the original side. Just don't be stupid...