Last weekend I did a VM/EX combo. Tomorrow I want to put another layer of EX. Should I wash the X again/EX or wash/QD/EX or Spray N' Wipe/QD/EX? Not really sure how I should go about.
i guess it depends on how dirty your car is. a safe bet is to carefully wash your car and then put on the 2nd coat of EX. i guess you can QD in between if you need to.