Pretty interesting read from the Advocate.

http://www.2theadvocate.com/stories/010505/spo_miles001.shtml

Try this link. A lot better info.
4-2-5 Defense
http://www.tigerforums.com/showthread.php?t=24245

Decent article. Read the paper first thing this AM.

What is the difference between a 4-2-5 and a Nickel Defense?

Read my link above. That will answer it.

Got it, thanks!