I've been watching this thread for awhile, trying to read through the whole thing, but it's so long that I'm still only half way through it. I finally signed up and decide to weigh-in.
Last week on 7/24 I started my first batch of RYR wine and so far it's looking great. The smell is phenomenal, it's lighting up the whole dining room. I used 8 lbs of sushi rice, soaked and steamed, 5 yeast balls and 1 cup of RYR. I ground up the RYR and yeast balls, coated the rice nice and evenly and put it all in a black porcelain enameled stock pot I use for brewing and wine making. So far , so good. I have to keep fioghting the urge to snoop and poke around in it.
I also started a large batch of white rice wine Monday 7/28 using 20 pounds of medium grain rice and 10 yeast balls. I've got a little experience with large batches from my experiments with sake. I steamed the rice, ground up the yeast balls and mixed them with a cup of flour to help get a nice even coat over the rice. I put it in a 6 gallon bucket with an air-lock. When I got home from work the next day it was already bubbling away.
I also have an experiment going with pearled barley. I soaked 2 lbs overnight cooked it in just enough water to cover it, let it cool and coated it with 2 yeastballs mixed with flour. The barley is already getting soft and sweet. I've got so many ideas and experiments that I can't wait to try with this technique. I've ordered 10 lbs of milled black rice and 3 lbs of red sorghum. I'm going to do a batch with each. With the sorghum I'm just not sure if it will have to be crushed first.