I realize that VM doesn't provide much protection and that is not the reason for it's use in my case as I VM and NXT all 5 of my cars every week (weather permitting). I don't think VM's main function is to cleanse paint. As a glaze, I am using VM because it enhances the shine and also helps fill and hide very minor swirls and imperfections, which, on a non-metallic black Prelude daily driver are a fact of life. It gets dusty and people seem unable to resist a quick hand swipe on the shiney black car, which leaves scratches. I know how to remove the scratches and swirls and have all the tools to do so, but choose not to do so on a weekly basis. My concern is that NXT, with it's minor cleaning properties, might be removing some or all of VM's filling properties. I've been using NXT for a couple of weeks and still debating wether to stay with it or go back to VM and Souveran. Truthfully, the VM/Souveran combo is much faster and easier with absolutely no streaking, which can be a minor problem with NXT if you don't get your application extremely thin. The streaking concerns me a bit when the really hot season gets here as I do my work out on the driveway with little or no shade. I do give the shine edge to the VM/NXT combo, but the edge is not that great. This is really somewhat of a curiousity question only, as I am really pleased with the results of the process, but if I wasn't prone to wonder about these things, I'd probably have another hobby to occupy my time!