I’ve Futured up my Starscream ankle (on the inside) for the second time with the same unsuccessful result…then I figured something out. As I moved the ankle forwards and back, I watched the pin head move as well. This shouldn’t happen, the big pin head should stay in place as the plastic cylinder spins. As I wiggle the ankle, the pin head also wiggles. It seems to not have been fired in deep enough at the factory. I dare not try to push it in further since we are dealing with crispy plastic that has already cracked in many cases. TLDR; put a few drops of Future into the big pin head. This is where we need the friction to tighten that pin.