My experience: 1 bend-back, still pretty strong, if not kinked bad, 2nd bend back, pretty weak, no jumps or bumps, 3rd bend-back, hold onto the gas cap for the tow out.
Steel rod w/ epoxy around it after the first bend back lasted forever on one sled, and it didn't bend again.
Steel rod w/ epoxy around it after the first bend back lasted forever on one sled, and it didn't bend again.