I have a sony 1271. From what I read here every one says to use a 80" wide screen and at most a 92" wide screen. These seem to be standard sizes. I will be using a DIY screen and was thinking of splitting the differance and moving the projector to have a 86" screen. This would give me 86" X 48" screen for 16:9 and 64" X 48 for 4:3. Can you just move the projector and focus it for the odd size or am I missing something. It seems this would be a good compromize.