So I've finally seen some rainbows, when my PJ overheated because I put the heat in my apt super high last night, and when I turned on the PJ it shut itself off. So I took it down and put a fan on it to cool it off (I'm moving tomorrow anyway). When I put it back up, I had plugged the HDMI back into HDMI 2 and my default settings went back to standard, and on a white/black test website (if you must know sciencedaily.com) I saw some rainbows but only in the text area. As soon as I switched the colour setting to Cinema or the other ones, I no longer see the rainbows at all. Moral of the story is, use Cinema or some custom one if you see any rainbows, there is a good chance they're only noticeable on Standard. But after 581 hours using this projector, only noticing them now and then having them disappear with a very easily selectable option, is a good thing.
++winner. hate to sound like a fanboy, but this PJ is a winner. I wish for deeper blacks sometimes, but when I'm watching most shows the contrast is very good and the colours are great. 3D is great too but only in bright movies. In dimmer movies like Prometheus I would say, as cool as it is, I'll avoid it for the most part. I don't think 3D is where this PJ shines, at least for really dark movies. For bright, animations like Pixar movies it's golden (although I wish I had FI on 3D...unfortunately it's something that has to be in the projector itself since HDMI 1.4 is too slow for 60fps 3d)