when ever i hear "chip and charge".. it conjures up the mental image of Federer passing shots rocketing to the left and right of Roddick as he approaches the net.. and then the face of remorse as Roddick dejectedly walks back to the base line... only to do it again the next point.
The Andy Roddick learning curve is actually a really good example for this discussion.
Early on, this image of Andy above would happen when would simply throw a slice at the other end of the court and move in. He seemed to have no idea how to transition forward from a good position, hit an effective slice, and control the action with his approach shots. He apparently thought that simply running to the net was enough to force an opponent to spray the ball and donate more points. Definitely a losing proposition against someone like Federer.
Only after he got some work done with coach Larry Stafanki did Andy learn how to chip and charge. This was one of the elements that helped Roddick get to the '09 finals at Wimbledon and push Federer to a 16-14 fifth set. To this day I firmly believe that although Roger won that match, Andy didn't "lose" it. In my mind, that final marked the end of Roddick's evolution from a being a rather one dimensional player into a rather competent all-court threat.
In the neighborhood of '08 and '09, Roddick learned to hit a more biting slice that flew lower and deeper than similar approach shots he would try earlier in his career. I grew up playing a lot on grass courts and Andy's weak transitions skills were easy for me to recognize when he was younger. Smart players like Federer could also suck him forward from a bad position with a slice placed in no-man's land. When Roddick took that bait, he would be attacking the net from too deep in his own end. In that '09 final though, Andy was much smarter about only going forward when he had a ball he could attack on his own terms.
The chip and charge attack in the amateur ranks is definitely a strong option in the doubles world, but it also helps any singles player to work with a more complete skill set. A doubles team can often take over the net by cutting the ball down into an opponent's feet, but singles can demand more precision. The trouble there is that the difference between a stronger and a weaker attempt at chip and charging is rather subtle.
A very effective slice may land only a foot and a half deeper in an opponent's end than a bad one. Not so many players have especially good slices and it's not rare to see too many of these shots hit too high and weak - the ball lands short and sits up. That's when would be chip and chargers get their hopes and dreams scorched by happy baseliners.
Learn to produce a "biting" slice that can be placed deep and that skids low. That will neutralize many opponents and let you take over the net in a much stronger position than just chucking a mediocre slice and following it forward in a kamikaze rush. If Roddick had learned this as a kid (along with what he already developed along the way), he may have enjoyed a few more wins through his career.