I've been diluting ECH2O and using that as a QD. It leaves an amazing shine. I got some good advice and was encouraged to try CARPRO's EliXir as a QD.
My first go was on the front fairing of my Harley. It goes on easy, feels great, stays super slickery and leaves an amazing shine. I was grinning from ear to ear when I was done and couldn't wait to do the rest of the bike.