re: sizing vs. starch
with starch you can make it thin or thick to suit your own needs. i like a heavy starch so my pieces can get up and walk by themselves, but if you like a 'sized' quality you can mix liquid starch thinner.
a really heavy starch is 50/50. more water = thinner starch. less water = thicker starch.
i also like the liquid because i hate to run out. i can always make more.