Bringing in the comments on a random thread from five years ago. Thanks for sharing, person nobody knows. We don't know what the hell you are talking about.
No issue with knees? Good luck. Both of my knees are done. The left one got so swollen that i couldn't bend my leg. The black and grey on my right healed better, but it still hurt a lot.
Knee and elbow ditches? Piece of piss.