The reaction from New Yorkers traveling the subway was one of surprise when the CenturyMen — a 100-voice, all-male choir of Southern Baptists that includes five Alabamians — serenaded them during a tour Oct. 1–9 that also included stops in Washington, Baltimore, Richmond and Willamsburg, Va. “The New Yorkers absolutely couldn’t believe it,” said Bill Mallory, a member of the…