One thing that sh-ts me about the mech tech weapons is that they don't stay in place - like deluxe Optimus's gun/axe weapon - you can't display the weapon in axe mode, its pretty much stuck in gun mode unless you hold the trigger in place. It would've been nice if they'd taken the spring mechanism out so you can display the weapons in either mode. Same problem applies to Barricade's gun/claw weapon, Sideswipe's gun/blade weapon and so on.