A clearer explanation of Hi Pass sharpening

Now that we know a lot more work/experimentation is required for inserting videos into the blog, here's a link (or click on the title) to a very good explanation of Hi Pass sharpening.

http://www.photoshopessentials.com/photo-editing/sharpen-high-pass/

(Scroll down to bottom of first page to get to 2nd and 3rd pages)

I've used this method for sharpening most of my prints entered in comps over the past 6 months. No ones commented that any of them look 'over sharp' so it must be an effective method.