I'm newer here on TFW even though ive been reading from this site forever but i have recently tried something i seen on another site dealing with repairing yellowed toys. Thought id share me experience so if others are looking to do the same they can try without worrying that they'll destroy their figure. Heres a great site. A Fix for Yellowed Plastic on Action Figures and Toys I started on a few small TFs cause i heard all types of horror stories surrounding using the higher end peroxides. After using it to fix a few smaller ones i had a very badly sun damaged Cerebros. But i took the chance and it came out beautiful. Now i just wish i could do the same for Fortress Maximus. Problem is i would need a very large bottle and lots of the solution. Hoping this may help some TF collectors fix old yellowed TFs. Hope it helps.