I am taking apart my first attempt at quilting this 6 foot square quilt. The back was wrinkly. T pins were used to stretch the layers. I am thinking of starching the top and backing before rebasting it. Ironing a quilt this large proves to be a bit crazy. As I go over it to iron other areas become wrinkled. I am going to use spray baste on the batting on both sides this time.

Any advice on starching, ironing and basting something this big?