I love Best Press but I hate the price.
I make my own spray stach with Linit liquid starch and water. I have heard that some people say starch draws silverfish, but in 41 years I have never seen a silverfish or any silverfish holes in my stash.
I can make the spray starch as starchy or as watery as I choose. Usually I like 3 parts water to 1 part liquid starch. I add 10-20 drops of essential oil of lavender to scent it nicely. And I store it in the refrigerator.
And if you spray on the wrong side of the fabric, any little flakes don't show.