Better Synching of Game States

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Hi there,
I have Photon Network running fine in my multi player Unity game. However, there is one exception. When I count down at the beginning of this race match, Master Client generally gets a 2 second head start, that is unfair to say the least.

What I am wondering is, I beleive setting some global room conditions or game states my be my solution, but I am unsure how to design the arcitrecture. How can I comminiucate global conditions better than calling an RPC?