I'm not sure why the dimensions I added to the display cable width were not approved for Step 14 (9/32" vs. 17/32"). Maybe I entered it in the wrong section? The reason I added it was because you cannot see the part number on the ribbon without removing the LCD, and I did not want to completely disassemble the phone at that time, rendering it completely inoperable before the part arrived.
I continually ran across "advise" from customers on Amazon (and elsewhere on the interwebs) stating "make sure you buy the LCD with the right width cable". This information, while well meaning, is utterly useless, since none of the advice I came across had the actual dimensions. It should be included somewhere in the teardown manual.
After some searching, I found the dimensions on the LCD product descriptions at www.repairsuniverse.com. I measured my own LCD ribbon, and can verify the 'wide' dimension is accurate: