I probably was undiplomatic in my post with the links. Didn't mean to be. I scavenge all my arrow wood. I use knot-free sections of spruce framing lumber, old wainscoting, old Douglas fir base boards and trim, and I love to find slabs sawn from logs to make them square--slab wood usually has the finest growth rings and fewer knots. I brought some red pine slabs from Maine when I moved here to western Kentucky.
I try to always use scavenged materials. I just manage to scavenge good wood. It's like gold--if you want to find it, you have to look where it is likely to be. Check building sites, demolition sites--I even made arrows out of the spruce sound board of a piano (never again!).
Here are some yellow pine shafts from old wainscoting:
Jim