adk, I looked around a bit regarding calibration settings for your unit. While I'll link a couple of settings that people got, of course the best is to do it for your own room, screen type, screen size, etc, (which of course you're doing already) but maybe they can serve as a reference.
First of all, if you are having troubles, though it's something you probably know more about than I do, it's been said to calibrate with the auto-iris OFF. Then after calibration, turn it back on if you want it.
Here is one very interested consumer's settings, probably the most involved at the AVS owner's thread, but he uses a DaLite High Power which is a very particular animal.
His settings.
ProjectorReviews settings, but high lamp. I think someone mentioned that they might also have low lamp setting suggestions, but I did not immediately notice them.
High Lamp Settings.