thanks for the input guys.
I have made up my mind to clay bar the car. obviously there was enough junk on it to cause swirl marks on the spoiler.
Also, i feel much safer applying the wax by hand as apposed to with a buffer. I think just because i feel more in control. Is there any difference to the end result if i do this?
Also, after clay baring the car do i need to polish and wax? or just wax. lol what the heck is the difference between the two anyways?