So I was fiddling with my GF Soundwave when I noticed something odd. The Cockpit on the right arm is different from the one on Universe Blaster. When you fold it over the fist to tranform the figure into vehicle mode the cockpit only covers two of the fingers on the fist where on Blaster there is more to this piece and it covers the whole fist and the large screw. The TFwiki makes no mention of a mold difference between GF Soundwave and Cybertron Soundwave as far as I can tell. This image here shows what I'm talking about.