A very kind and generous friend gave me a bottle of MaryEllen's. wonderful stuff. i just wish it wasn't so expensive. i can't find it anywhere for under $42 a gallon.
so, i am sticking with the liquid starch i can get at the grocery store for less than $3 per gallon. i can mix my own strength, and spend the savings on more fabric. i do get flakes if i spray on too much at one time but they brush off and i move on.
and the tip about spraying and pressing on the back of the fabric is right on target. it does make a big difference.