I never ever thought of that. I thought you were meaning which form showed up in package on shelves first, and that varied from figure to figure I think. Might be something similar with construction, but yeah, an interesting thing to think on.
assembling a Neo-G1/TF:TM cast. Please PM if you have (or know of) the following at a reasonable price: Classics or Henkei Astrotrain, Sunstreaker, Sideswipe, or 3rd Party iGear Ratchet and Ironhide.
Also looking for Universe Repugnus and Overbite, Frostbite and Longhorn and any Webdiver toys.