I float the batting & the top. I first get my backing on the frame, attaching it to both rollers, then roll it onto the front roller so that the top leader is exposed. I use the factory edge, so the batting folds are parallel to the bars. I unfold just enough to pin the factory edge to the backing, then unfold the rest. I carefully smooth the batting over the first area to be quilted. I have some storage bins under my frame and I just loosely roll the excess batting and lay it on the bins. Then I pin the top edge of the quilt top about an inch or so below the batting smooth it down and lay the rest on the bins. As I advance the quilt, I can reach under the top and smooth the batting, then smooth the quilt top down.