The Megs clay bar will remove nearly all the contaminants on the paint, this includes wax and polish residues so yes. You can for sake of simplicity just wax afterwards after you remove the quick detailing spray with a decent microfibre cloth/s.
When I use Megs Clay I tend to rinse the car after washing then straight away clay using either a solution of shampoo or the quick detailer. Its important for the car to be dry when you apply either polish or wax
I just wet the body parts i was doing again.I washed, dried, then used lubricant on different parts off the car. I didnt want to leave the car wet because I didn't want any water marks, as claying took me quite a while. The water would have dried way too quickly, especially in the sun.
Then after polished, sealed, waxed.
Will just a water spray on just the certain bits you want to clay suffice or do you need to use a solution of some kind??