I have a Sharp XV-Z91E LCD projector an Arcam 89 Plus DVD player (Connected via component prog scan) I am setting the system up for the third time in a loft space using screen material stretched over a solid frame... in the first set up i used matt material from DRH Screens and in the second i painted a wall in flat matt white emulsion. The loft will be totally dark and i liked the matt screen but wondered if i should go higher on the gain... as my luminums are 800 and 1200 contrast. DLH recommend the 3.2 gain (Well it costs more!!!) for 1200 lums and below, but i am concerned about getting good black levels.... any thoughts anybody???