As you can see, all of the modes measure within 250 lumens of each other, except for taking Animation mode and using it with High Bright. That ups the projector to its claimed brightness, but like the brightest mode on most projectors, it isn't close to being as good looking as the other modes. (Not quite "ugly" by comparison, but pretty much a "break glass in case of emergency" combination when dealing with way too much ambient light).
User modes Natural, and THX seem to be the same, as do Stage and Animation, as far as general modes both other features such as gamma settings, may vary, without affecting brightness.
Mike was able to get 940 lumens out of the projector post calibration - a significant jump over THX mode, but it still falls short of competing Sony and Epson projectors.
As I will state in Picture Quality, Stage mode (or Animation) is brighter than most modes, and has the most punch/watchable picture combination. It's my choice for sports with ambient light present, even if a touch cooler in color. It has some serious "pop". But if ambient light fighting or large screens are your thing, there are definitely brighter, also high quality, alternatives on the market.