We are lousy with Red Osier Dogwood here.
http://en.wikipedia.org/wiki/Cornus_sericea I've been only cutting the straightest stems that are between 24" and 40" I figure with anything too short I can always foot it or use it for the kids.
I've been binding some of them in such a way as to have any curved parts oppose another curved part. I also periodically untie them and hand straighten them a bit. After they've dried (with the bark on) for a few weeks they are less resilient and don't spring back as readily as when fresh. Kind of like an old carrot in the bottom on the crisper. I also scraped a few of them right away to compare how they respond to drying, straightening, and so forth.
The stems I left the bark on while drying were much easier to scrape since the wood shrank and pulled away from the bark.
I've harvested about two or three dozen shafts and today I also picked up a couple of stems of either Arrowwood viburnum or Honeysuckle, and a few Rose stems.