I took my dogs for a walk on this nice, cool autumn morning. I noticed an appropriate sourwood shoot, about the right size for an arrow so I cut it. As I walked home I used the back of my pruners blade(I carry them any time I walk in the woods) to scrape off the bark. Sourwood is the only hardwood shoot I remove the bark from when green because they have never checked on me. Most other hardwood shoots I've cut over the years do check if I remove the bark too soon. Results may vary with other's experiences.
Anyway, now, through the winter is a great time to harvest hardwood shoots for arrows. Here are my tools for the job. I found a cheap 3/8" open end wrench I added a handle to(easier to find in my arrow tool box) that I use to gauge the diameter of the butt of the shoot and my Felco #2 pruning clippers I've had for years of landscape work. Shoots you collect now will be ready to make arrows with in a few months. I bundle the shoots using rubber bands to hold them together. The rubber bands allow the shoots to shrink as they dry, holding them straight until I get around to straightening them.