From a Double Pass Thru or a R-H 1/4 Tag.
Centers Pass Thru, Right | Left Turn To A Line and Spread to become #1 (Very End) and #3 in a Tidal Line as others Step Ahead and Veer Right | Left to become #2 and #4 in a Tidal Line.
© Vic Ceder. All Rights Reserved. Used with permission.