[Greg McKaskle]

How accurate is the shooter? While it is true that a 640x480 image has more information, it is four times as much data and will generally take about 4x the processing time. You shouldn't really need to crop -- that is equivalent to using an ROI, but the ROI doesn't need to copy the data to a new image, etc.

If you do a bit of math, you can determine how much error a single pixel of error represents, and unless you are shooting from mid-court with a very accurate shooter, I wouldn't think it would matter.

Also, keep in mind that floppy cameras don't take very good images or give very accurate numbers. I'm not saying anything about your mounting, but in the reveals, I've seen some that are practically zip-tied on and are flopping all about.