I have a new black car and I do not seem to be having great fortune with Z5. Every time I wash the car ( I try to use the Perfect Drying Method) but I have to go over the car with vineger/water, then go over the whole car again with the Z6. In the sunlight the paint looks like it is covered with speckles instead of being solid black. The Z6 just spears and I cannot seem to get it to disappear. Plus when there are spots that have sat all week on the paint, I sometimes have to get the polish out to remove them, then the Z5 is gone, then have to prep the paint, then apply again yatta yatta yatta shewy- seems like too much and not practical.
So what do you think of a wax instead?

So what do you think of a wax instead?