I heavily starch my fabric before cutting out the blades and once I have the plate together, I starch it again using and up and down pressing motion. Then I use the water soluble glue to tack the plate to the background. Once the quilt is completed, then I wash the quilt in clear water, including the rinse cycle just to get all the glue and starch out. I pretty much do this will all my quilts as I work full time and have to stop and store my quilt pieces alot. The starched fabric keeps everthing crisp and I don't distort the fabric when I sort the pieces to figure out where I am when I start back up on the project.
Sorry for the rambling, but I hope I explained my process well enough.