Similar to my suggestion, but I wanted to see the entire formation. This could work too, but I don't trust power too much.
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Andy you just might have a solution for this whole saga :D
;) Maybe I should apply to uCool as a game designer.
I don't see the need for the extra 30 second. There's already a 5-minute gap in between battles in CWS already, so freezing the formation at 90 seconds before the battle begins would not change much (instead of 4 minutes to change formation, the players involved will have 3 and a half: still ample time).