I cant stand the toon slavishness of current "Masterpieces" and Sunstreaker was guilty of it so much. But I got Spinout and switched a handfull of parts between them and it made Sunstreaker finally good looking. Spinout with those leftover bland and grey parts works ok, certainly better than Sunstreaker. There is a couple toyhax on them too. Anyhow, it is a fairly easy mod. Shins and heads are plug and play (spudger the shins from the top), shoulders take a screw and just forearms and wrists are a bit annoying with those pins, but easy enough to hammer them out. Very happy with the results. Black makes great contrast with yellow, thank Primus for shin details and new head takes the cake. Just a pity neither came with the big gun chromed, gotta try some of those chrome pens.