When I'm quilting I always use either Warm and Natural or Warm and White. I think it's pretty standard for most of us. I've never had a problem spray basting with those battings. At the last PMQG meeting I was lucky enough to win some batting that Julie and Candi brought back from Quilt Market. I know it was from the Warm Company, but I got rid of the packaging and can't remember what it was. I'm thinking it was Soft & Bright? But don't quote me on it.
Either way, it's more polyester than I'm used to. And apparently polyester doesn't stick with basting spray. Maybe this is already common knowledge? I'm not sure, but I'm putting it out there in case you don't know either.
I attempted to spray baste my bike quilt. My first step is always to quilt around the outside to stabilize it all. I didn't realize the backing wasn't firmly basted until I was almost done.
Can you see the big lumps around the edges? Guess me and my seam ripper are getting friendly tonight! Then I'll be basting this with pins. Hope I've saved someone from the same fate. ;)