Being so old, I felt that Jetfire should not have such massive forearms. Makes him feel a little too powerful. I moved the Arm-kibble by fixing it to the panels on the double-ended socket posts. I've since removed the screw-holder on the forearms but kept the little clips, so that the nose of the Black-bird will still attach securely. The back-kibble is perhaps a tiny bit bulkier, but not horribly so. I also manipulated the posts that the engines are attached to, to give Jetfire a sleeker profile.