I have a few jelly rolls I would like to use but the fabric is very flimsy and has been handled quite a bit as the edges are very worn and frayed (they are Moda and I purchased them on line). They need to have a bit more "structure" before I start working with them so I thought about misting them with Best Press then very gently pressing (no moving the iron on the fabric--just press and lift). Will this shrink them too much to still be 2.5 inches? Do people normally do this and I just don't know??