I did a kit quilt top from Connecting Threads recent catalogue and pre-washed the flannel - no problems with colours running but I had major shrinkage - this is the first time I have ever not had enough fabric in one of their kits to make it up. The majority of the quilt was from 2 1/2 inch strips and because of shrinkage I could not get enough pieces cut from each strip set - they did offer me a few fat quarters but from my calculations that would not be enough, so I changed how I was going to do the quilt.
I was very disappointed in this outcome.