i've made lots of raggy quilts- many of them with regular cottons on one side-flannel on the other- some with regular cotton & flannel both on one side- i do not pre-wash my fabrics (including the flannels) before putting together a raggy quilt- i've never had any problems with uneven behaviour- or any issue once the quilt was constructed, clipped, washed & dried- everyone loves them- they coume out Fabulous! here's the latest- mixed fabrics-cottons & flannels- nothing pre-washed- this after being washed.[ATTACH=CONFIG]341643[/ATTACH]as a completed quilt