There is a lot of talk about cap/step in another thread and I had no clue what it was so I googled it and this is what I found. Maybe I'm the only person on the board who had/has no idea what it is but here it is anyway.
http://www.awsc.org/LinkClick.aspx?fileticket=zVXmppkFS_s%3d&tabid=229&mid=1291
http://www.awsc.org/LinkClick.aspx?fileticket=zVXmppkFS_s%3d&tabid=229&mid=1291