Ok guys i just got a 2004 F150 Lariat supercab with the 5.4 3v and was looking into a tuner. I will be eventually doing a CAI and Cat back for the time being. I am debating between the Diablosport, SCT and Edge tuners. Has anyone tried these on the F150's? I do a lot of city driving but do take a 16 foot trailer with equipment on longer hauls about once a month. Any input would be appreciated.