Well Crash, if it helps, I agree with you -- most stick stirrers just burn E-- but thinking about it, there's probably a "sophisticated" way to game the code; just like you can split-ess to foil an attack or draw the attacker into rolling scissors, you can either "E-burn" stick stir, or do it such that you blow minimal energy.
I haven't done the "Film recorder" test. My experience is that it records the local plane's position according to its updates to the server, but I'm not sure it restricts the remote updates.