About your scale and water quantity - the entire thread is missing for me. I saw it by accident when I went to Google this group for an old post of mine.
Anyway, don't obsess about it because it depends on your personal taste. For example, the standard is 2.25 grams per 6 oz. water. However, for some teas, I brew 2 grams per 8 oz water and for some, I brew 1.75g per 8 oz water. (Since I don't use milk, I use the extra 2 oz capacity for tea.) For those proportions, any difference between the amount of cold water heated and the amount of hot tea resulting from the steep is negligible.
Play with it and have fun, okay? It'll help you distinguish the small differences when you use a spoon, but a scale is most useful for drinkers like us with teas that won't measure well in a spoon like the more voluminous teas.
HTH.