if you take a 1/4 inch steel plate and drill a hole in it to resize them to 23/64 by sticking them in a hand drill and pushing them through the plate clamped in a bench vise- that should solve the "keeping them straight" problem- at least it did for me when I shot ramin- my favorite arrow wood by the way.
Doing this "crushes down the exterior surface of the shaft somewhat like 'boning' does to a baseball bat -making it harder,stronger, and seems to take the bends out of the shafts. Not all fo them will work of course, but they become very serviceable shafts done that way.