....A cautionary tale.... Finally got Earthrise Optimus Prime from HasbroPulse late last week. I had noticed earlier that ER Prime shared the same biceps design as Siege Prime. And since I had a spare Siege Prime, I thought I’d swap the gray biceps from ER with the red ones on Siege. Unfortunately, ER Prime used head pins instead of screws to hold both the shoulders and forearms together. I usually like a bit of a challenge, but due to those damn pins, I could see this was gonna be a doozy. The shoulders weren’t too bad. i just had to wedge them apart with a screwdriver , and the biceps pop off of a mushroom peg. The forearms were much much worse. The inner forearm is actually a small panel, and has 2 head pins- 1 pin is for the elbow joint. The other is very close to the hinge that holds the other part of the forearm(for transformation). First I tried to wedge them apart. I immediately saw that the plastic was getting bent and stressmarks were forming all over. So I stopped that. Then I tried using my soldering iron and prying some more. That worked, but with the plastic there being so delicate and thin, I ended up warping one forearm piece from the heat, and the other had the elbow post snap off. I was able to repair both arms, but there’s some noticeable damage. It’s very minimal, but since I know about it I zoom in on it like a bullseye. And the pic augments the damage more than most would notice in-hand. All in all I think Prime looks much better with the red biceps. But I must caution anyone who tries to attempt this. Be very careful. There’s a decent chance you may wreck the toy.