We didn't have to change our usual or "traditional" finger positioning, meaning we were able to keep our right thumb in the bottom left corner of the pad and use our index finger to navigate. (Even if our thumb moved slightly up on the pad it still worked.) Best of all, while using that finger positioning we rarely zoomed in on something by mistake.
For those who don't know, the "Pad Only" area simply houses apps that are tagged as pad-only by users -- you can do so by tapping and holding an app icon in the drawer, followed by dragging it to the "Add Pad-only Tag" button in the top-right corner.