Tried, But found some problem.
<img src="http://i339.photobucket.com/albums/n460/zi0808/problem.png" border="0" />
This is how it looks. They make somewhat cracked outline.
It looks more horrible when thickness is increased - It displays four
black texts far from X(Thickness) pixel from original text as you see.
Well, same thing happen when using Ashley's outline fx.
Is it a prolbem of effect, or problem of my CAP?