I used glue sticks on my latest quilt project. I used glue sticks to hold some of my pieces together until I sewed them. Some times I used a wider bit of glue than needed. I just tend to get happy with my glue sticks sometimes. LOL! Anyway, even after ironing the seam, I was still able to gently pull apart any fabric that had been glued and heat set. From what I have read here, Elmer's glue is just a very thick starch and not really a glue. The glue sticks did leave a bit of purple on my fabric sometimes but when I washed my quilt after it was done, all the color and glue completely washed out. I seldom uses pins anymore.