Heads Wheel Thru, Swing Thru, 1/2 Circulate, Cross Concentric Explode The Wave
All Cross Concentric calls that I tried from this formation involving change of axis did not put the original centers at the ends of the correct axis. The same Concentric calls worked properly.
On cross concentric, if the original center 4 end in a 2x2, they end perpendicular to "their" long axis. They determine their long axis by looking at their 4-dancer formation. If the center 4 start in a 2x2, they look at the long axis of the overall 8-dancer formation.
The reason this is the case is because it is a "more consistent" definition, and allows Cross Concentric to be used from formations in which there is no long axis (e.g., from a Butterfly-like formation after the Centers Recycle and somehow the outsides adjust so that they are all the exact same distance from the center of the set. In this case, there is no long axis for the 8-dancer formation, but there is for the center formation of 4).
This is consistent with the Cross Concentric article by Linda Kendall that appeared in the Zip Coder magazine several years ago.
You'll notice that this is also consistent with our diagrams in our Ceder Chest: http://www.ceder.net/def/crossconcentric.php
