If you plan on testing aero at open test days...PLEASE MAKE SURE EVERYTHING REMAINS ON YOUR CAR!
I appreciate the effort, but when it causes the session or possible damage to other cars...it's kinda pointless! I would recommend trying this at a "PRIVATE" test day.
Sorry for the rant.
PS, I'm not referring to wing adjustments or new bodywork!
I'm talking about (filming aero) and (smoke s)