What shoes do you recommend that have the best cushioning. I have sore knees from time to time and heard that this is one thing that can help (I plan on doing much more strengthening and stretching). I saw on another post that someone recommended the Asics Gel Resolution 2, but many of the reviews say that the cushioning is great however the durability is terrible. What would be a good shoe with cushioning AND durability. I play about 3 times per week on cement courts indoors.