Wish I could understand what you mean, but I don't want to sign up for a free BOM. So. I'll give this a try.
If you are talking about using a 4 1/2" x 2 1/2" rectangle and two 2 1/2" squares then I can tell you that I sew on the same corner for each goose just a hair inside the diagonal line, fold it at the stitching line to make sure the rectangle size remains intact, set my seams, then press the seam toward the corner covered [not open.] Lastly I trim the seam. This way all my geese are consistent. I usually am doing more than one goose. Next I do the other corner in the same manner. Some of my friends leave the base rectangle intact, I don't as I don't want all that bulk.
ali