I have no problem with that - what you see now is using Black Magic after going over it with clay. That was all done before the Xpel was installed.
What order should I be doing things, wash, clay, glaze? I'm not sure if/when the H20 guard would be used. My car used to sit outside but I quickly made it the garage queen next to Wanda.
I typically do things over a day or two and so all the clay, wax inside our garage.