I love love this:
https://www.connectingthreads.com/to...b__D21456.html
The glue holds immediately, it only takes a tiny dab every few inches, and it washes out completely. I refill the little dabber container with Roxanne's Basting Glue in the big bottle. I dab my matching points with glue, check to see they match, then sew them. Show quilt makers use a lot of basting glue, a lot!