Projectors are such a hard thing to get a good picture of. If you have a perfectly dark room, you cant tell how large the picture actually is. If you start letting light into the room, the picture starts going downhill just a bit.
The X1 is an awesome projector, my room was not "big enough" for it. At the distance it would have been from the screen, I only would have got a 70" picture.
I notice all your images are 16:9 but you have a 4:3 screen. Do you ever use 4:3? I have a Draper Luma 92" 16x9 never used if you are interested.