>>96523601) The peg itself is new. Those two had a solid one piece mushroom peg, not this half-and-half. Others later had a ball peg.
2) Once the half-peg is bent it won't unbend due to the material. I jammed a thin piece of plastic to hold the two sides further apart, but overdoing it prevents the peg to go back into the hole. You need so bending space left to pop back in and it's a delicate balance plus I don't want the half pegs to snap from stress.
3)No the pic is for the knees and thigh swivels. Upper arm have a solid piece peg.
Like I said, it's anew way of doing something they didn't need to change. Ball peg was tight enough and easy to pop out if needed.