I have a PUI seat cover that looked very bad when professinaly installed. The original cover went back on becaused it looked better than the poorly sewn PUI repro. It was crooked and the width of the inserts was very different between the back and the bottom.
I bought them a few years ago so sending it back for a replacement was not realy an option.
Al Knoch is known for making very good pieces for Vettes and that is who I would buy from next time without question.
-Mark.