When I satin stitch I find it comes out nicer if I use stabilizer. That said , stabilizer can get quite expensive on a large project. I made a monster quilt all satin stitched and fused down with steam a seam. I used stabilizer on the first block and decided it cost too much to use on an entire quilt. I use good old loose leaf paper as my stabilizer. It pretty much falls off when finished. Tiny pieces left in the seams etc don't cause any issues. I do it all the time.