I have been looking into the rules on this yellow flag fiasco, apparently the light boards have to flash to be classed as a yellow flag, but a yellow flag doesnt flash!

I think they have missed it messed up and too much rides on the decision to change it
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Red Escort 1.6LX
Then - Red Escort 1.4
Then - Silver Fiesta ST 170BHP
Then - White Fiesta ST MR200+
Now - Mitsubishi Evo IV Forged 2.3 500BHP
and Mondeo Mk3 2.0TDCI