TO ANSWER YOUR QUESTION CORRECTLY ONE WOULD HAVE TO KNOW THE CONDITION OF YOUR PAINT. SOME CARS NEED MORE PREP THAN OTHERS. IF YOU HAVE LIGHT SWIRLS Z-PC FUSION WOULD MOST LIKELY BE ENOUGH. THAN Z-1, Z-5, AND FINALLY Z-2PRO. Z-5 MAY OR MAY NOT BE NEEDED DEPENDING ON THE PAINT AFTERZ-PC FUSION.
IF YOU ARE IN NEED OF MORE CORRECTING, MENZERNA HAS A LINE THAT WOULD HELP GET YOUR PAINT IN CONDITION FOR THE Z-2PRO. THEY ARE....IP AND FPll. HAVING USED THESE PRODUCTS I FIND THAT THEY WILL HELP A LOT OR COMPLETELY CORRECT MOST PROBLEMS. YOU THEN COULD USE Z-PC THEN Z-1, Z-5 OR SKIP Z-5 AND GO TO Z-2PRO. WELL THAT IS HOW I WOULD DO IT. ZFX WOULD BE NICE TO HELP GET MUTIPLE COATS OF Z-2PRO ON IN ONE DAY.