I had some older carbons given to me today and I was wondering what some of you more knowledgeable trad. shooters think. The majority of them are Blue Jacket #230's with some AFC 2300's thrown in as well. These are the old style carbons that are pencil thin with outserts. I used them in my early archery days with great success out of a compound. I was wondering what you guys thought about using them for "knock around" arrows? I am thinking about shooting them for stumps, targets, etc. I did a little research on-line and the best I can tell they are all spined #50-#70, I am having some trouble finding any G.P.I. weights though. Just wanting some input. Thanks!