Yes I know I more or less answered my own post in the dialogue and it's so easy to say, "yeah just go and buy new ones", doesn't take much brainpower to say that. As I am not an experienced engine builder, what I was hoping for was some reason why and why not from someone who had built lots of engines and SEEN lots of things. Are they a point of failure? New performance pistons should have them included, but that doesn't mean they are a weak point. I was just looking for a person who really knows the answer, not armchair experts giving an easy opinion. Thank you!