Share your personal setting for the Optoma HD8600

Projectors don't work like that. You can't just take someones settings and expect the picture to look better. Apart from differentiating factory settings, things like screen fabric, screen color, screen gain, wall color, ceiling color, carpet color, and the amount of hours on a bulb all come into play and will all give the on screen image a different look which is why you should calibrate yourself or stay close to the factory settings as they are usually pretty close.

I agree with Seegs here regarding sharing settings. I will say that I've managed to dial in something pleasing to my eyes using the disney wow disc and experimenting with different gamma curves and offsets if that's something you haven't tried yet.

As for your comment above regarding the constant color change 'ie dark to bright' - are you referring to the action of the dynamic iris? For me the dynamic iris is a little too visible and distracting on the 8600, and I ended up disabling it. This is something you may want to consider.