At low ranks, the diamond at the tip of the needle is very large, and distorts perception of the true location. Even when it looks like it is perfectly centered, it may not be. Also, Higher ranks improve the accuracy. At rank 8 and higher, you'll find it much, much easier to correctly get in the right places.
Also, if you hover over the location for just a second before each click, it seems to improve the results. This is just an observation of my own though.
Name: Sloth
Server: Ruairi

"I can see the future too, it just takes me a while."
"It wouldn't be the first time I've given my life to get the color of shoes I want."