First let me tell you that this quilt is gorgeous!!! I am a new and self-taught quilter. I read books and looked at on-line tutorials and most have done the pinning method. I pin most of my quilts. I have bought two types of adhesive, 505 and June Taylor (not sure if correct name). The 505 was great-no odor at all but very expensive. The other spray (comes in a pink can) worked great but has a horrible odor that lingered in my quilts, even after washing.
I am going to get a pair of knee protectors to protect my poor knees when I pin baste on the floor.