I know it's not much help now, but we have a two-part article on butt plates in the works for the GCA Journal. I did the early stuff for Part 1 and Tony Pucci is doing the second part on the trap door plates. The text is done, now he is re-taking all the pictures from his original research to make them color close-ups. The first part was scheduled for the Spring issue now at the printer, but it was pushed ahead to Summer to make space for a member article that came in. That means the butt plate articles will probably be in the Summer and Fall issues.