Travel Troubleshooter When Sharon von Wolffersdorff booked a flight from Seattle to Rome, she considered ignoring the experts’ advice. The experts — in her case, her airline and airport — assured her that she could make a flight connection in Frankfurt, Germany, in an hour. But she was skeptical. “I experienced a nerve-wracking transfer in Paris a few years ago,” says von Wolffersdorff, a retired Spanish teacher from Seattle. “We didn’t want to do that again.” She’s one of many travelers who are questioning recommendations from the pros. Travelers have always been contrarians, but perhaps never like this. And their timing, just before a summer marked by uncertainty, couldn’t be worse. “We’re in an age where skepticism is the default setting,” says psychologist Frank Niles. “So when a professional says, ‘Don’t go there’ or ‘Do it this way,’ some travelers instinctively do the opposite .” So why are travelers seemingly more skeptical? When should you be contrarian — and when shouldn’t you?…