I've been using NXT for awhile now. It's the only wax/sealant I have used since I bought my car. I love how it looks after first applying it. But what is bothering me is that anytime I wash it, the water doesn't bead up like it did when I first bought my car. Is this just the nature of NXT or something else? Also, last time I used it I let it dry for a good hour before I removed it and I still had oily streaking. (black paint) so I just through a MF bonnet on my 10in random orbital and that seems to remove it much easier.