Wow....when you make one mistake, it seems they multiply! I used spray basting on a lap quilt and it appears that I used too much. But once it was on, there was no going back....so I quilted the basic lines and it was down to just the middle of all the 7" blocks. It was gumming up the needle and had sticky stuff all over the machine from the edges. I had basted the outer edges so thought I was safe to try and wash out the spray. Evidently that was mistake #2. The spray didn't wash out from batting, but let go from fabric and then stuck to itself causing lumps and a general mess. I have been working on getting out the lumps, but in the middle, I am going to have to take apart some of the seams to smooth it out. Geez, what else can go wrong? And what do you use to get the spray to dissolve in the wash?