I loved spray basting until I discovered basting with Elmer's Washable School Glue. Now I am addicted to Elmer's it is so much more secure than spay basting. I spray baste the same way you do. The process is pretty much the same way with Elmer's. There are a number of good YouTube videos to teach you the technique if you are interested.
Spray basting is perfect for larger or smaller quilts and perfect for baby quilts as long as the quilt is washed before given as a gift. Looks like you have a handle on the spray basting.