I've since switched to Klasse All in One and its twin, Sealant Glaze, both are awesome! To "top" these acrylics its recommended to use a quality carnauba, so I tried out some Pinnacle "signature series" and it too is awesome! They (Pinnacle) also have this wax called "Souveran" thats for dark, red and black colored cars and I'll be getting that very soon to have in my arsenal! In addition to the above products I also picked up some S100 (same as P21S) but at half the cost and have to say it too is a quality product!