I have been wearing Head shoes for several years now and I bought the Revolt Pro 4.5 simply because it was the next step forward in the evolution of the product line. However, when I got on the court with these shoes, I noticed right away that they were a great improvement over past versions. I immediately felt better stability and was able to change directions much more quickly. I’m not sure if it’s related or not, but the tread seems to be just a bit firmer than previous versions of the shoe. I’m not usually one to fuss about shoes – they have generally been little more than a necessary part of my gear - but I feel like these shoes gives me a real advantage in quickness.