My thought is that the whole idea of the jelly roll quilt is to have a variety of fabrics to give the quilt design 'movement'. I would also wait until I had more fabrics to incorporate into the quilt. Are you in a hurry to make this quilt? What are you going to use the quilt for? Is it a gift or a 'practice' quilt you will be keeping. Even if you are keeping it, I would still want to have the 'movement' in the quilt, so I'd wait. Just my opinion. - Julie