Hi Margie, When I embroider thin towels that are a woven fabric, I prefer to use 2 layers of easy tear. You have less chance of distorting the design. I tear away 1 layer at a time. Now if your design is dense, I would use 3 layers or a heavier tear away. You could also hoop up 1 or 2 layers and float one under your hoop. I always baste my design. I would think that if it is that very light wt. tea towel you wouldn't use a dense design.
If you are doing terry cloth, I do it the same way, only I add WSS on top and hold in place with my basting stitch. I know all machines do not have that ability, but there are basting stitches that you can add to your design, If I have a heavy terry towel, then I use sticky back or spray. If you remove the sticky back as soon as you finish the design, then it is much easier to remove without pulling your loops.
Just remember, the denser the design, the more you need to stabilize. I also use cut away sometimes. It really depends on the design.