I almost think I am turning Japanese and will start using the crazy amounts of leaf they use.
I find the same true about me. However, no matter how much leaf one uses, if you brew the tea for too short
a period of time - certain deep flavors will not get into your cup, and it will taste incomplete. That has been my
experience. I think many are under the impression that very short steep times are "sophisticated."
I just looked at Maiko's recommendations... And I find it interesting, that even though they recommend a great deal of leaf, they call for a 90 second brew period.
Usually I never brew under 90 seconds. There are exceptions. But, I have found that tons of leaf will often not make up for a brew period that is too short. The flavors don't develop to their potential. That has been my personal experience. I'm still traveling down the rabbit hole.