The picture showed a driver, but the text did not indicate exactly what club was being talked about
Hitting up with the driver can be an advantage, but certainly not always an advantage.
3JACK
I think what you have to remember is that when they say optimal, they're referring to distance. If you're playing for score, playing with optimal spin/launch numbers may not work for you consistency-wise. I remember Duval several years ago saying that he liked a little more spin than was optimal because it provided him with more control. But as far as optimal for max distance (low spin, high launch), I think that there's little doubt that hitting up opens the door for better numbers.