I only pin baste and free motion quilt on my domestic machine. I mainly have learned from LeahDay.com. She has many free videos and you can find free info on her site that starts from step one. She is now using straight pins with "pinmoor" covers but I just use curved basting pins. Personally, I don't want the fumes of over-spray from the spray basting products.

I do alot of FMQ when I do the NICU quilts. I use W&N batting, spray basting, FMQ then wash and dry. Never had a problem.

I have used spray basting, pin basting and thread basting with FMQ. Once I tried basting with Elmer's washable school glue I was hooked. Cheap, no overspray issue, no toxic odors, easy, does not gum up needle and washes out. Please do look up this topic in the search box. It really is nifty and at least worth a try on a scrap.

Thanks. Do you use little dots of glue or spray half and half solution of glue and water?

Glue basting takes the place of pin basting not spray basting. Some
people like to dilute and paint or spray it on the entire surface. Some of us just dot or drizzle it on in a grid where the pins would go. That's what I do. I don't dilute and I don't cover the entire surface. I just turn the bottle upside down and drizzle a thin line in a sort of grid. Smooth backing (or top) and let dry. Flip over and do other side. I've never had a problem with this. Once dry it will not gum up your needle and it has always washed out for me.

I pin baste, never shifts while I FMQ. I use either high loft poly batting or for charity quilts I use W&N or W&W.

I have been using this method for quite some time now.

I don't get those tucks and folds in the back like I do with pins or spray

Does it stain the fabric.

in my experience over many quilts it has not stained the fabric. I think the washable school glue is a starch based product.

I do both, it just depends on size and how I'm going to quilt it.