Originally Posted by Iceblossom

It takes awhile to get used to piecing flying geese units. I find that if I line it up on the bottom/side, the top will work itself out. If I try for that top seam I get more problems.

Do you have all the pieces cut yet? There are a couple alternatives to basic practice practice practice -- and by the time you get this done you will be an expert! So take a deep breath and maybe practice on a few blocks out of fabric scraps.

The easiest method is also a bit fabric intensive/wasteful. You would start with a rectangle, so say your subunit there should be 3 x 1.5". You start with a rectangle that size, then you take a two squares, each 3", draw a diagonal line on the back and place it on one side of the rectangle. Sew on the line, cut off the excess, repeat on the other side.

I would probably use that technique if I had the fabric, otherwise I'd keep the large triangle as is and slightly overcut the side triangles and then trim everything down.

Second suggestion is to try paper piecing them. Helps if you can cut those star fabrics slightly larger than needed.

There are many other methods to making flying geese, some use specialty rulers, others grids.