It is my understanding that Shae and her (guess) 800cc-1000cc implants managed to land a few movie and TV roles, but quickly discovered that she was being typecast into "big titted bimbo" roles due the size of her implants. Wanting to be considered for more "serious" movie and TV roles, she had her implants replaced with smaller ones.
However, like Pam Anderson, she probably discovered very quickly that there are 10,000 other actresses with C-D cups competing for more serious roles - and just as quickly Shae apparently disappeared from movie and TV screens. Unlike Pam Anderson, though, Shea has (to the best of my knowledge) NOT been back to the plastic surgeon to rectify her "mistake" !