>>9430990The reason you take the side knobs off G1 Perceptor's arms are so his arms can fit between his legs for the tank mode. Taking them off but then not transforming the tank mode right is double pointless.
It's like how in Cybertron, Hasbro put Optimus Prime's backpack on upside down and tried to swear up and down "no, that's how it's SUPPOSED to look"