thanks for the technical explanation 
but as I said I thought shiny was meant in a more shinign rather than reflecting way, maybe its 2 different words in english which I mean.
I am looking at metal outside at metal. it reflects the sun, but it doesnt blind me or “shine” as I would say it if it did. Thats what I meant.
So, to stay on technical terms, I wouldnt like it to be too reflective. as said, in the shot above it looks nice. I wouldnt like it any more reflective though.