I make carpenter bee traps to give away, Home Depot has Doug Fir 4x4x8 post for around $20, I buy them for bee traps but as a former user of a router arrow shaft machine I often see a post with perfect grain that I can't stop thinking about making shafts out of. I have more arrows than I will ever shoot, dozens of store bought shafts as well but I still drool over such great wood. I have seen some posts with very tight grain as well, the one I just bought has tighter grain than the grain in the bee trap picture.
You have to look through the pile but the good posts are there, I bought this one a couple of days ago, clear straight grain end to end with only one knot that wouldn't affect any normal length shaft up to 32".
You can see the grain in the trap.