26/27.5-28 is good for me with either the AD07's or A048's on street, but I take it one step further. In CT a daily temp range this type of year is 70-90 degrees. If I set the car for 70 degrees (on way to work in morning) car is a brick from lunch on (when I usually play a little more) So I set all my vehicles based on a daily median temp. That way my pressures are always 1lb +/- from my but-o - meters ideal. Has worked really well and I'm getting perfect tire wear even with all my camber modifications for track use. Try it, you'll like it!!!
