I'm on 16 for the browser. I don't find the 9900 to be any less accurate than my Torch was. That said, I tend to use the trackpad when going for a link that has others next to it. That or zoom in 1st then click...
its about as accurate as any captive touch screen. but ive had one issue, i cant click the little tick boxes on the connections drop down menu.. i have to scroll down with the track pad to click the likes of bluetooth.
maybe thats my fingers though but i dont exactly have the chunkiest thumbs lol