Adobe CS2 "Smart Sharpening"->"HighLights"

I had not realized effectiveness of "Smart Sharpening"->"HighLights", till I started viewing the image at 400%.

Here are samples to proove the effectiveness of "Smart Sharpening"->"HighLights"..:-)
This control is supposed control sharpening of highlights; I had not observed its effect because I would normally view at 100% but at 400% effect is very apperant.

"Smart Sharpening"->"HighLights" is 17%


"Smart Sharpening"->"HighLights" is 90%



This way I can reduce the over-shrpen effect