I will try to research this later in the day, but I thought that Elmer's Glue-All was a different product from Elmer's Washable School Glue (the one I always associate with glue basting).
Edit: Okay, I couldn't wait. Here is a link to a gallon of the school glue on Amazon:
http://www.amazon.com/Elmers-Washabl...dp/B001SH7UVQ/
And here is a link to a gallon of the glue-all on Amazon:
http://www.amazon.com/Elmers-Glue-Al...dp/B0038DZZJC/
It is the School Glue that we are usually talking about on the QB. The Glue-All may have a different consistency and different properties.
Edit 2: I have wondered in the past if this is the same product in different marketing bottles. I always assumed there was some difference between them. Never compared the two directly, though. Has anyone else?