[quote="Pig Hog" in terms of traditional matcha preparation and Japanese tea ceremony, there absolutely are right ways and wrong ways of doing it.[/quote]
If it were absolute then there would not be different schools following different rules. Even the great masters went their own direction to create new traditions. And when you mention "drinking casually," it's as if that is somehow below the level of a tea ceremony. Needless to say Japan is not filled with people rushing to tea ceremonies every day. It's a sub-culture that does not appeal to many. So while I agree there are old, rich, beautiful traditions, that in no way defines drinking tea. Maybe to a tea master an electric kettle was shocking at first. Now, except in very formal settings, they are ubiquitous, Get ready for cappuccino makers, everyone is breaking the rules.
And now - back to The unofficial/official HAGI topic. Sorry for the digression.