I've use those pads for application, they work fine.
I use a good APC. Experiment with
Meguiar's, Simple Green, Orange Blast, or even Mr Clean or Lysol. One of those works really well, but I forget which one.
That's what I mean when I say that the SHINE of
NXT might fade, but it's a real SOB to get off of stuff even when you're trying to remove it. #21 is the same way.
Tom