Definitely details. I've been researching this chrome technique.
Research has given me this so far. Must be sprayed from bottom up. Can only be sprayed in one direction, that is, if spraying a door for example you must spray from bottom up and if you start from left to right you cannot continue with a back spray. you must end then bring the gun back to end you started otherwise it will cloud the finish.
Second, can't be clear-coated till fully cured or it will dull and be cloudy, and lastly the chrome paint generally begins peeling within a year or so.