Did you ever follow through on your product test?
Why?
Why Not?
Greatest stuff I have ever used in over 50 years of testing......
There may be better.....in someone's opinion...don't we all have one.....
....but for my objectives on a silver color car......I may be through experimenting for many many years to come.
I highly recommend: Hyperpolish, HyperpolishNP, and the combo/the best/HyperGloss & HyperSeal.
Just make sure you prepare the surface ahead of time/i.e. remove swirls et.al....as one should do before completing any such project.
Please do give it a try and report back to us on your experience