Although the high back is the correct way according to the instructions, and in my opinion looks better that way, Sideways leaves plenty of scope to personalise him by allowing subtle mistransformations in robot mode. For example I tilt his torso down, and rotate his feet wheels around to the back of his legs so they act as heels, which has the effect of making his legs look longer, thus making Sideways appear more athletic. Which is partially why I have five of him, plus Dead End.