First off this is the wrong website for oil analysis. Most people on this board are still in the dark ages when it comes to knowledge about oil. You should post this on bobistheoilguy.com.
I can provide you my thoughts.
Redline is ester based and has a scavenging effect. It is not uncommon for it to give high copper reading initially esp in Honda motors. This is normal.
About oil grade, a 30 weight oil is:
min 9.3 and max 12.5 at 100 deg C
It does not matter if it is a 0W30 or a 5W30 or a 10W30. The first number just tells you how thick the oil is around room type temps and even this is not the whole story since there are huge differences with this when you compare dino to synthetic. You would have to get the specs. One 5W30 could be thicker than another brands 10W30.
Back when the NSX came out 10W30 oils were much better than 5W30 oils. The VIs were not as good. Now the base stocks are better and the VI are much better. In fact some 0W30 oils are thicker than many 10W30 at operating temps. Pennzoil Ultra has a 5W30 and a 10W30 - their specs are almost identical esp the pour point of the 5W is much lower -- but the 5W30 meets the Acura/Honda Turbo oil specs not the 10W30. Very few oils meet that spec. Most of the tech goes in the 0W and 5W oils now.
Final thing. You almost sheared your oil to 20W specs. If I were you, I would change my oil around 3K. Redline is tough but I believe you are driving the NSX like it was meant to be driven.