1330z Currently have the Blues headed north for the Thunder Over Michigan show at Ypsilanti. ATC is 126.825. Only air-air heard so far has been on 275.35 and 284.25. As they did last Sunday on their RTB, they are on masks at FL410. BA #4 has received a weather update for their arrival from Maxwell Metro on 342.3. Mike Riffle Cataula, GA