I use the Sullivan's Spray Baste from Hancock's. I love it!
My only problems was in the beginning I was using too much and it gummed up on the needle. Didn't hurt my machine but I had to keep cleaning the needle. Also, I do put safety pins about every 12" around the edges of the quilt just because I tend to really manhandle the quilts when I am FMQing. I scrunch instead of rolling.