I guess the better handling and less hydroplaining is psychological as well.
Its a fact that increasing tire PSI helps FE. Just because in your one week of testing you didnt see it doesn't mean anything. What where the weather conditions for both weeks? How was trafic? Theres lots of variables. One could offset the others.
What needs to be done is for people that say it is unsafe to actualy talk to a person who's job it is to engineer and test these tires. And those that say it doesn't help, I'd like to see a test of over a year.
My Mileage was about 34 to 35 before I increased it. It has jumped and has stayed consistantly high.
Note, when ever you change the PSI the tire will wear differently and will take time for it to show the most benifit. There is no doubt you will see a noticable difference going from 35 to 45 even displite that fact.