The only solution I found for me is to baste baste baste as close as possible. It seems like I'm hand quilting the thing before I machine quilt it. I use basting pins sometimes for twin or smaller size quilts. I pin every two inches. Spray basting is good for a small size quilt but on a big quilt it shifts on me. I use the Sharon Schamber hand basting method using the two boards and sitting at a table. She has a free video on her network site. Not her website.