This can cause slight distortion close to the selvage, but it's quite easy to fix. Simply make small cuts along the selvages about 1/4 inch deep (slightly deeper if your fabric is thick), and spaced about every 2-3 inches.You can cut right at a pucker if it seems tight tight. I cut on a diagonal, but you can cut perpendicular to the selvage if you prefer,. The results are pretty dramatic.
I didn't press or otherwise smooth out the fabric. This takes just a few minutes, and the results are very worthwhile.
HTH, and Happy Sewing!