If using WSS, it is always better to use some rubber shelf lining strips along long edges of the hoop to help prevent the WSS from shifting or loosening while stitching...especially helpful for ITH projects that are taken in and out of the sewing machine. This is especially helpful when there is dense embroidery within the project like the candle mat...Always better not to have to cut away the fabric until absolutely necessary and if at all possible after the embroidery is done...some digitizers have you cut the fabric at the beginning and that is not always necessary, but easier...Hope this makes sense...

Yes. It makes perfect sense. Thanks for the additional info. It will help me to improve my embroidery too. I use a lot of fsl and I'll have to try the rubber shelf paper. I actually have some in my sewing room. I have that trouble of wss shifting too.