I have done this with lap size quilts, just finished one last week. They quilt up just fine and I have not had a problem, but I do iron my some to set the glue. What I do is lay out the batting, put the backing over it right side up, then I roll or fold the backing so I have a strip going across one end. I put the glue on backing then unroll that part and smooth it out, do the next section showing and unroll and smooth, when all done I start in the middle and press it to set and make sure there are no wrinkles or puckers. The iron dries it great, then I flip it over and do the same with the top. Works great.