The Crystal Mist has added crystalline polymers in it and is used as a quick detailer to remove light dust/dirt. The Pinny Spray Wax is used to boost the wax finish after every wash - it is not meant to use as a quick detailer to remove dust.
I use the Crystal Mist followed by the Spray Wax. The protection and shine is very nice - I do this after every wash.
Hope this helps answer your question,
-Sparty