These instructions from Jason's Web Site @ YoSteve
Work it in Once: Get a nice clean foam applicator pad. Dampen the applicator pad with a small amount of quick detailer with no carnauba (Meguiars Final Inspection #34 or Eagle One Wipe and Shine.) Apply a small amount of Klasse AIO to the middle of the applicator, about the size of a nickel. Spread the product onto a panel and work it into the panel until the surface is smooth. DO NOT use circular motions, use front to back motion, going from bumper to bumper, the way air moves over your car. Buff off with out letting the Klasse AIO dry. Do this to each of the panel until you have finished the car.
... Jason - no mention of using a PC here (Is this your new method? Does the old way still work?)
Apply the SG: Grab another clean foam applicator pad. DO NOT dampen the applicator, keep it dry. Apply a dime-sized amount of Klasse SG onto the pad. Apply to the panel-using bumper to bumper motions. Apply REALL REALLY thin coats. If you apply excessive amounts of Klasse SG, it may be slightly difficult to buff out when dry. Apply SG to the entire car, and then wait 20 or more minutes for the SG to dry. When you look at the car and say "Did I apply enough" you applied the correct amount. I use about an ounce to cover a medium sized sedan.
Martin