This is my first time visiting this forum. I can see that being part of a quilting forum will be a delight.

I have a question. I've never sewn using precuts when exactness of the seam width has been necessary. I'm doing one now. The question is: When using precuts (specifically, a jelly roll) do you measure the 1/4 inch seam from the outside edge of the zigzag, or from the inside edge of the zigzag?