Hi Randy,
Generally overscan setting crops the image (as you noted) in order to avoid the picture anomalies that you saw when you set the output scaling to larger.
Previously many units (if not most) did not offer you to play with the overscan setting, fortunately it is available on relatively higher end models.
Waiting for my Epson TW-2000, Epson lent me the S4 which is a SVGA FP, and it does not have the overscan setting feature it crops about 5% (to avoid anomalies).
Epson is a great brand, the buisiness FP I have in hand is doing a good job within its limitations and capabilities of course. Glad you're enjoying yours!!
