I was thinking which one of the thee Movie line gimics ; Automorph, Mech Alive & Mech Tech did you think the most or least of - which added to the experience and which detracted from it. I remember being impressed by Concept Camero Bumblebee's Automorph in his legs and chest but also frustrated by the same gearing when used on Voyager Blackout. Mech Alive was something I never really felt defined itself in any meaningful way it just stuck some gears in thing that you'd likely hardly notice where there. though the ideas were not always bad and perhaps they even have some worth for the future still - the concept was not a one that had a coherence to it that Automorph more often seemingly does. Attaching the arms in a way that left a bar visible through a gap in the arm to provide an illusion of movement is not a bad idea - it was just that they seemed to underplay it on some toys it's almost invisible like in Sideway's upper arms. Surprising me the most is Mechtech it's a concept I thought i'd dislike when I first saw it and I still wish the Deluxe weapons would lock like the Voyager ones do - but I find I get so much use out of the guns and that as they are 5mm bars they can be lent to classics toys and Energon toys and all sorts of others and work just great. So something as simple as interchangeable parts to me works much better than a line overarching concept that might not always work so well. I hope Hasbro keep the C-clip, 5mm and 3mm systems going into the future to maintain that functionality for years to come as it's an aspect I very much enjoy. As does Classics Bumblebee no doubt with all the guns he can now borrow.