I only use squeeze mode except for when I did a instuctional video and I didn't really notice any resolution difference. In the Red Bicycle though I cropped it in post just so I could get an even more wide look. I have been thinking of doing some letterbox stuff soon just to see how it looks. I had the detail level on zero because I am hoping this will be blown up on screen at a festival. Other shoots I have used a -2 detail level.