Well plenty of people have run 275/30/19 without a problem. It's more dependent on your wheel offset and alignment. Most people run this size and have coilovers which typically are lower than the Swifts. I know with my Swifts they are just right but far from "low". Also, I was able to achieve -2.0 camber in the front and with the right offset wheel you should be fine. Btw I run the same wheels as you but a 255/35/19 in front. Maybe Slicer will come by since he has run every tire and nice wheel made
