I just sent this in a response to a PM. Everyone has their own preferred method. In a nutshell here is mine
AIO
Use a 4" yellow foamie. Spritz well using EO W&S to prime the pad. This helps to get the AIO on THIN. Pour a nickle sized dab of AIO on the foamie and fold it in half, slowly, to distribute the AIO over the surface. Don't squeeze, just fold. That is enough to do 1/2 your hood. Immediately wipe off using a clean dry MF towel. If you see some streaking, that is normal, just refold the MF to expose a clean surface and wipe intil streaks are gone. Move on the the other side of the hood, this time, and every time after, only 1 light spritz of EO W&S and a nickle's worth of AIO. Work you way around tour vehicle in the same fashion as above - apply, the immediately wipe down.
SG
You can begin this step immediately after finishing the AIO layer.
Take a clean MF towel and soak it thoroughly with water. Wring it out, but not completely dry (if you did wring it out from this point, you would only get 1 or 2 tablespoons more water). Fold in half the into 1/3 along the long side. Apply a thin line (about 1/8" to 1/4" wide down the middle of the damp MF long-ways - leaving about 1 1/2 inch at either end empty. Wipe over 1/2 your hood. Immediately wipe off with a clean dry MF. Again this could result in some streaking. Use Sonus Acrylit Spritz to remove any stubborn streaks . Work your way around the vehicle as before. About half way, rinse out the MF applicator complete, wring almost dry and continue til finished.
When completed, you may notice some streaking you missed during the wipe-down. Get them off now because it will be tougher tomorrow.
Here is the important part - wait a minimum of 24 hours before adding another layer of SG - this being at 80 degrees F. The wait time will be temperature and humidity dependent. When temperatures are below 50 degrees F, you are looking at a wait of 4 days. The SG needs time to cure (which is different from drying) as it is completing a chemicla transformation during the cure.
Rewash if necessary before subsequent SG layers. You can stop after 3 or 4 since the shine will be maximized at that point. You can top with carnuba or UPP or just keep adding SG.
Hope this helps