Haven't had that problem but was wondering...when cutting squares, not matter how careful I am to measure them..they will come out crooked! I have since learned some of that might be due to thepolyester in the fabric, so I now will use 100% cotton only, but was also wondering...in scrapbooking there is a blade that is like a curved zig-zag....SBer's use it as a decorative cut for the edge of the paper, but would using this kind of blade (long as it fits into the handle) help to stop the fabric from stretching and make the square cut evenly and stay that way?