I generally just use the freezer paper, apply some starch with a little paint brush to the edges, then iron the edges in around the paper. You are all right, though, it does pay to take the time do prepare the pieces prior to sewing them down. It makes all the difference in the world.
I think if you have to turn the pieces like you are saying Alex Anderson does...I may just stick with either my method, or back basting. I think trying to turn these small pieces will be difficult.