Accuracy, my friend, comes from consistency, and duplicating good form, shot to shot. It is not inherent in any arrow. The most accurate arrow, will be the one leaving the bow in the most consistent manner, and the tubular arrows will be tops in that department, when talking shaft to shaft...shot to shot.
If you want to use wood, you can make dip tubes from pvc, which is fairly cheap at the local hardware. Get caps for each piece and you have dip tubes. You an also use wipe-on poly rather than dip tubes, or you can put on spray acrylic. Wood arrows can be extremely accurate, but they must start from good stock, that is consistent from shaft to shaft.
You can be as simple or complicated as you like.
But I will say again....the shaft doesn't make accuracy...the shooter does.