I have never used that wax I am however a fan of harly wax. I had my car detailed by a local lad see his links attached. He removed 99% of the swirl marks from the car and being very careful and a devoted two bucket man they should be now gone for good.
http://s83.photobucket.com/albums/j310/b10cker/?special_track=nav_tab_my_albums
The albums down the left hand side are car specific to each job.
Heres a few threads ive done on a forum too...
http://www.detailingworld.co.uk/forum/showthread.php?t=74087
http://www.detailingworld.co.uk/forum/showthread.php?t=71900
http://www.detailingworld.co.uk/forum/showthread.php?t=71767
http://www.detailingworld.co.uk/forum/showthread.php?t=65581
Steve.