I hope Hasbro is working on the yellowing problem with the Stormtroopers. As you all I know, I have about 300 Stormtroopers from the first VOTC sculpt forward. I would say every VOTC Stormtrooper has yellowed in the torso (over 50.) Many of the follow-up variants of that sculpt have started, but haven't gotten quite as bad. I believe the Space Trooper version has remained pretty white, as well as the Luke and Han stormtroopers and the Sandtroopers I cleaned the "dirt" off of have been pretty good.