Very excited about this!
I have read 83 pages into this thread so far. No way I could hold out and read the entirety of it before making a first attempt!
What I have done is, I used a wok/steamer combo I have and steamed up 10 cups of Walmart Calrose sushi rice. I added 10 balls of Onto Yeast that I purchased online (It's actually fairly local to me). All of this went into two 1-gallon jars that I sanitized with bleach/vinegar/water mix and rinsed very well. (I do not have any StarSan yet).
My sushi rice came out of the steamer pretty darn dry. I read that too moist is not good, but too dry is also not good. I guess I'm hoping for the best here in that regard since this is my first time actually steaming rice and don't have anything to compare it to. I saw a small amount of condensation in the jars about an hour after filling them, so I might be good there.
What I'm wondering is if 1 yeast ball per 1 cup of rice is the appropriate mix for Onto Yeast brand. The bag they came in says the whole shebang is good for 17Kg of rice, which is a heck-of-alot. I haven't bothered to count the yeast balls in the bag, but I am somehow getting the feeling that 1 ball per 1 cup is a little much on the yeast side.
I'll try and get some pictures posted up in a few days here when I start to notice some results in my little project here. For good or worse.
Edit: I forgot to mention, I soaked the rice for 3 hours and rinsed it well.