I recently acquired a Zenith DSV-100 DLP Front Projector. I am wondering if the DVDO iScan Pro or iScan V2 line doublers will work with this projector and if so, will it give a very noticably better image projected on the screen? I am currently projecting on a home made screen that is approximately 118" wide x 72" tall. I am looking at the Stewart Film GrayHawk or FireHawk screens as a future upgrade and would also like some feedback on these regarding how they compare to something like a matte white 1:1 DaLite screen. So far the one thing I have done that has given me the most improvement in my viewing experience has been to paint the wall behind my screen flat black. Phenomenal improvement just by doing that.