I use liquid Sta-Flo and dilute it with water. I usually mix it 1/2 and 1/2. I starch most of my fabric before cutting and after setting my seams, I spray them to press to one side. I have tried spray starch, but the liquid gives me more control over the stiffness and it doesn't flake like most sprays. I would suggest that you try both kinds on samples and then go with the one you like best.