Originally Posted by chanomatik
A performance enthusiast would tell you yes. The question really is "how dramatic of a difference will I see?" I've never upgraded to a thicker RSB, but have been told that when you jump up in size drastically that most people aren't at all prepared for how the car handles given the new dynamic. In my mind 1mm thicker would be a technical improvement, but you might be left wanting more since we tend to desire more noticeable feedback from our purchases and just assume that if something is "too much" that we'll adjust to it after a while.
So thats a NO