I'd like to try applying some Carnuba wax to my Z3 with my Porter Cable since it worked so well with polish but wonder just how long do you buff an area with a random orbital machine? Should the wax still be wet, semi dry and hazy or almost powdery dry? I realize I will need to use a MF rag or another soft towel material to do the final removal and buffing of the wax but am at a loss at when to stop the machine during application of the wax....Thanks...Michael