First of all, welcome to the board. I'm not familiar with this method but I also don't waste the cut off fabric from flying geese. After you sew the goose seam move over 1/2 toward the corner and sew another seam. When you cut off the waste part you'll have a half square triangle block. Just put them in a baggie until you have enough to make a block then sew them together. Or just keep stashing them until you have enough for a scrappy couch throw or if you don't want a scrappy couch throw, make them into a lap quilt or two and donate them to a nursing home.