I was wondering if anyone can give me some advise. I am about to purchase a Sanyo PLV-Z1, and will be using a Da-Lite Perm-wall screen with it. My question is which material, HC Da-Mat or HC Cinema Vision, will be better with a small 72" diagonal (16:9) screen? I will not have total light control during daytime viewing, so ambient light is an issue I have to consider. A popular projector & screen dealer on the internet told me that the HC Da-Mat would be best for some ambient light rejection and still have enough brightness for good picture. I thought the HC Cinema Vision was supposed to be a better screen material for this. If anyone has suggestions and/or experience with this situation, I would gladly appreciate it. Thanks.