You will likely get as many opinions as posts on this one, so here is my opinion.
1) Wash the vehicle with a double concentration of your Gold Class wash. This will get any oily dealer prep stuff off.
2) Go over the vehicle to see if you need to spot clay any grime off the surface, you probably wont need to clay much. Wash again after the claying, if you need.
3) Apply the AIO, lightly spritzing the applicator with a QD makes the job go smooth as silk. Buff off.
4) Apply the S/G, Let the S/G dry for at least a hour or two before buffing off. This makes it a bit easier to buff off, the S/G can be stubborn to remove but youll develop a routine. I like to use a terry towel to get the bulk of it off and then buff out with a MF towel. Others prefer a damp towel followed by a dry towel. I have found if you spritz the applicator with a QD it will make some streaks that are real tough to remove, use a dry app. to apply the S/G.
5) Sit back and enjoy the shine!!