Text tutorial.

In the text tutorial, they change text into a rusted effect. I tried this with a different font, but when I inversed the channel and tried to remove the jagged edges, it didn't look like it should. What is the technique to remove the edges or should I be using a rounded font?

Thanks

2.
Next Ctrl+Click your text layer to select it. Once it is selected click your channels tab and click the save selection as channel button. By default it is called Alpha 1. Rename it to text. Now with the text channel still selected drag it into the create new channel button to duplicate it. Name this new channel light. Leave your new light channel selected and run the Filter/Blur/Guassian Blur with a setting of 8, then run it again with a setting of 4, then a setting of 2, then a setting of 1. Hit Ctrl+Shift+L to run the autolevels. Then hit Ctrl+Shift+I to invert the selection. Once the selection is inverted hit your delete key to remove any unwanted jaggies. Then hit Ctrl+D to deselect your channel.

Yes that's the way