i just finished a queen sized quilt with a fleece back...it quilted up so nice! i did not have any problems at all with this ; in fact was thinking...i really should do more quilts this way they turn out so good! :thumbup:
i had no problems with stretching, wrinkles/creases, tension or anything else...lint was non-existant (unlike using a cotton back)
if you are doing this on your regular sewing machine i recommend the darning/quilting foot...instead of the walking foot. my walking foot caused lots of distortion...pulling on the fleece where as the hopping foot does not cause any drag.
when you get ready to (make your sandwich) lay the batting out nice and smooth. batting next (if using it) then smooth the top over all and baste well.