Hi, I need to know something about hard courts. Up until recently I'd only ever played in a parking lot hitting against a wall. In that context, I considered myself pretty good. I recently hit around with someone at a reconstructed, resurfaced, painted hard court. I knew it would be different, because the ball's timing is different off a racquet than it is off a wall. I was unable to hit any groundstroke other than a slice 1hbh. Everything else sprayed. I couldn't read the ball, so I was frequently out of position. But worse than that, it was doing crazy things when it bounced the first time. This is what I'd like to know about. On this particular court, the ball would sometimes bounce up with heavy topspin, sometimes it would skid low, and it hardly ever did what it should have. On at least two occasions, the ball skidded as if it hit ice. It hit, then slid a foot or two, and bounced under my racquet. Other times it would bounce straight up and curve low as if Nadal had hit it. I was not able to read the ball at all off this court. So, my question is, are the things I'm describing normal for a well-surfaced hard court? The court had recently been painted blue and red by the city. There was enough paint that it wouldn't be possible to see the texture of the material beneath (probably asphalt).