Julia,
Never did any seedlings from 'Purple Beauty' so i can't tell. It is odd how some are such good parents and others are such duds. generally anything that looks muddy comes back and gives you a pile of pigs. You will see some of those in my patch this spring!
In '13 I crossed mostly "pretty faces X pretty faces" so I should run into fewer pigs. However, I also did a bunch of crosses of 'Plastic' X big reds and purples that could be in the mud group, depending upon what genes are segregating. I would certainly like a red or purple version of 'Plastic' but it might take another generation.
Kevin