As
@hrv stated, put you hand in a ziplock and run it across the paint. The bag makes it easier to feel blemishes in the paint vs your skin.
It took me almost 2 days to get the job done right. First I washed the vehicle with regular soap, then a second wash after spraying with decontamination / iron remover, a 3rd wash to remove any residue and power wash rinse. Hand dry with microfiber towels. Backed it up into the garage and used a clay bar over each panel with detailing spray. I taped off some of the black plastic cladding and then applied Jescar Power Lock + on all of the panels. The air temp dropped during this process and it took a long time for the Jescar to flash dry. Final application of the Turtle wax graphene to complete the job.
My process might have been overkill but I know the paint surface was prepped right and 2 years later the surface feels very smooth. Totally worth it IMHO so that I can avoid detailing and waxing every season.