Okay, as a new archer I have a question, I noticed that I managed to buy half a dozen carbon arrows that say 200 on them instead of the 300 I usually buy - probably because the pro shop manager who usually helps me wasn't there and I acutally picked something out by myself.They're already cut and everything and I shot them along wiht my 300s and can't notice a huge difference. What is the difference? Weight? Straigtness? Thought I'd ask here before I asked in the technical forum. Thanks in advance. Chuck.