Hmm, I guess everybody has different opinions. I have been trying to go with what others have been saying on this forum. The thread LT150 and Tensioned Screen...which one? seemed to say that the LT150 works well the High Power, and the thread LT150 Rainbows After Going to Hi-Gain...raise hands... seemed to say that the rainbow effect was not dependent on screen gain. However, I'm trying to make these decisions sight unseen so it's quite difficult. A matte white pull-down screen would be quite a bit cheaper but would require some construction work that I'm not too comfortable with. Are there perhaps other options for screens that pull up?