Butterfly loops are an increasingly common feature of courses whether they are to provide separation in mass start situations, for spectator appeal or simply to make the most of a small area. The TONIC 2014 Classic had the interesting example below. This was made more challenging by the 1:15000 scale and quite thick vegetation. With legs this long (or short) on 1:15000 you can simplify your plans to only a few key steps per leg. The first and most important being making sure you have a good compass bearing from the control each time (this is called your exit direction). For example 13-14 my steps would be 1) good exit direction 2) confirm I am running up an open spur 3) make sure I stay on my compass and look for the formline shape funnelling me into the control. I wish I had followed this recipe in the race!