Set the boat up for quick and safe reefing in case you misjudge the weather--furler on the headsail or at least a downhaul, and for sure one reef in the main that doesn''t take a genius to put in. The rest would be judgement and common sense.
I used to race on Lake MI in a fleet that included a 19' Lightning, not too different from a Flying Scot. He even flew a spinnaker most nights.
In most of the channels that go into Lake MI on the MI side, getting out of the channel will be the most exciting part of your trip. In a West wind, getting out of the channel may even be dangerous in the ports without breakwalls. Other than that, just pick good wind and wave days for your vessel.