you mention how easy it will be to just use two rooms. How do plan to keep the rooms light tight when they are on their dark period ?
I only have one dark "room," it's actually in the same room as my light, only it's a spot covered by curtains which do not allow light to pass through them, rendering it totally dark.
I suggest you make a name for this tek and post it all over the forums. People will actually do this, you could always just move the light too (if no one has mentioned that yet).
Unless there is a way to conveniently move the lights, I cannot imagine plugging and unplugging the lights, moving them (they are hot!), ballasts, etc. Luckily, plants do not need to be unplugged, and aren't very hot at all. A name for the technique? Eh, I don't think it's anything too special, but if I am pushed for one, it would have to have "moving plants" in it's name, haha!
the amount of work it would require makes it a useless proposition. Far better (assuming space allows) would be to use a light mover on a rail, or scrog or shorter veg time.
Of course a light mover on a rail would be ideal, it's just that it would take some setting up, while what I am doing requires not much of a setup. If I could, I would definitely do it, but as I said in other posts, I am short of money and cannot afford to do these things. The other things you have mentioned, none of these achieve what I want, which is more bud in the same amount of time. Calling it a "useless proposition" is a bit harsh, in my opinion, but we are all entitled to one, so whatever floats your boat, mate.
The amount of work is what puts people off, but I will be a living testament that this indeed works! And when I can get it clocked in, the things...I don't even want to know what I will do with so much bud. And isn't that a problem we all want to have?