Funny, there's nothing in my manual about what pressure works best with modern tires. Not even a good definition of "best"
Mine has an entire page of pressures, but I'll bite...how do modern tires affect the recommended pressures?
Sorry guys, but threads like this are both never ending and have no real answer, just a lot of opinions. Best tire, best pressure, best oil, etc. Jaguar is my favorite, as their manuals spell it out for you...if you want smooth ride and more comfort, use a lower pressure. If you want a firmer ride or plan to drive "spirited", use a higher pressure. So the best pressure would, therefore, depend on your style of driving.
As with spark plugs, learn to read wear patterns and figure out what your style requires.