Is their such a thing as polishes that work better on light or dark vehicles? My Tahoe is pewter colored and I would like a polish that would optimize that color. I currently have M105, Menzerna IP and FP II, Klasse, and Blackfire Gloss Enhancing Polish. So far I have only tried the Menzerna products to get ok results. The results were an indictment of technique and not product, I must add.