Lessons that I learned on this ordeal:
1. When replacing pads on the NT, do not drop both pads. Using one hand, maintain pressure on both pads while you remove the pad pin. Drop one pad while maintaining pressure on the other. Replace the pad that just dropped - then maintain pressure on that so that the pad spring will not drop. Drop the other pad, and replace it. Put pressure on the pads against the pad spring to line up the holes for the pad pin. Install the pad pin. That stupid pad spring is not attached or clipped anywhere in the caliper that it will fall off if you drop both pads. Stupid design!
2. The front calipers can be removed with the pads are still in place. I've done this at least three times one on the right and ones on the left. Yes, you can install new pads with the caliper is removed. Just be careful not to twist the hose and the speed sensor cable (on the right caliper).
3. It is easy to install front pads with the caliper removed.
And 4. If you drop the pad spring while installing new pads, you can skip installing it. I rode at least 300 miles without the pad spring on the right caliper. No rattle on the pads while riding because the pads are really secure with the pad pin and the pad retainer on the top side of the pad. BUT my conscience really bothered me during the 300 mile ride. So I had to look at the shop manual and look for the break out diagram of the caliper. I saw how the pad spring is situated on the caliper so I did the easy install last Saturday.