My ? is if you are using Elmers' School Glue to hold pieces in place when sewing, why is there a need for pins. I use ESG all the time and have never needed the extra holding power of pins.
What are you working on that needs extra pinning?
ESG is my go to tool when working with bias pieces like HSTs and doing binding. I make a lot of mini quilts and love the way ESG works to hold those tiny pieces together and just a dot at intersections keeps them nicely aligned . There is never a slip up using the glue.
I even use it for curved piecing with no extra pinning.