Just two things.
1) Congrats on the Z4. I love my Z3 and Sirquack loves his Z2.
2) Hit the Carada web site and get some free screen material samples and give them a try. I went with their "Brilliant White" screen which has, I believe, a 1.6 gain. This was for a room with a LOT of windows as well. Others said to get the gray screen to increase the black levels, but I liked the way the 1.6 gain looked in that room. Now, I just moved it all to the new theater tonight with NO windows, dark walls and ceiling. Dark carpet, etc. The picture really "pops" which is cool, but now I am going to have to look closer at the samples again and see if I will need to change my screen for something more on the gray scale. Maybe not though. It is late, and I just got it hooked up. I need to recalibrate and go from there.
good luck.
