I was thinking of buying some flannel fq's for a quilt. I want to use one of the patterns in Laps From Fats. The directions for each pattern call for a specific number of fats and a specifc number of shapes/strips to be cut from each fq. I know that it is a good idea to wash flannel first, but here is my dilemma. If I wash the fq's, I may not have enough fabric for all the pieces from each, but if I don't wash, it may shrink up too much. I would appreciate some opinions.