My routine is to use DACP once a year along with a good claying. Then I follow it up with Pinnacle polish, and top it with P21S.
Haven't really polished it in about a year, just basically wash with Pinnacle Bodywork Shampoo and top it with P21S every 3 - 4 washes or so. When I first purchased the car it was swirled big time and had some other paint issues that took me sometime to fix, but finally got it where I wanted using a high-speed buffer and DACP. Now maintaining is pretty easy.
Thanks for the complements guys.