KenmoreGal2

I just made my first 12 string pieced blocks. Fun!!

I used shiny store ads for the foundation. I cut the paper a little larger than I wanted the blocks and then trimmed.

My issue is when I peeled off the paper, I could see the stitches at the edges were getting loose.

This first project is just a utility quilt so no worries. But what is the proper way to do it in the future?

Should I make my foundation the exact size I want and lock the stitches at the beginning and end?

Thanks for all advice.