This is a good way to make sure your triangles are good. I don’t like the “mark down the middle and sew on each side then cut” method. I prefer cutting the triangles and then sewing them carefully. It works for me.
I am also working on some dolls for Primary Children’s Hospital. I have made a dozen or so, and I decided to experiment with some options. The dolls themselves are super simple, but the hospital gowns that go with them are much harder. The default approach is to use bias binding, but it is the devil to put on the curves correctly. I always end up having to redo at least a few inches. Another American Sewing Guild member, Paula, said she made them by just serging the gown edges. I decided to try it and see how it works.
No question that the bound one looks better, but it takes 5-6 times as long! We have an ASG charity sew meeting on Saturday to make these, so I hope the serger version is acceptable. The hospital needs hundreds of these, and even though lots of people make them, they are always running out.