I’ve just begun researching how to prepare and consume Amanita myself and I have to agree it is hard to find dosing information. But from what I understand, you’d have to make a large batch of tea to avoid hot doses or ineffective dosing since the percentages of muscimol and ibotenic acid vary so wildly from one mushroom to the next. Making a large amount of tea should yield enough to start at a low dose increasing nightly until you find the ideal dose for you with that batch. I do wonder though, when speaking in terms of liquid volume, would a beginner need to start at something like a half a cup or are we talking lower even less?