I came back to tennis almost two years ago. I'm about a 3.5, and play mostly on har-tru. I seem to remember sliding a couple of times and hitting some nice shots in some of my earliest outings upon my return to the game without even thinking about it, but now for whatever reason I never seem to slide anymore, or feel the need to. Am I doing something wrong? I love the surface and feel very comfortable moving around on it, and I love the idea of sliding 'cause it looks cool and all, but I tend to just go with the flow when I'm playing and do what feels natural, and I find that I never slide or even think about my footing much in any way when I'm out there, and everything is feeling fine. So why don't I slide anymore? Does it matter? Should I consciously try to?