Surviving on tour? 'You've got to let leftovers go.'
Jay Frisby has been playing Tom O'Brien on the national tour of "South Pacific" since September. After Kerouacing it up all over the country for nine months along with a 50-member cast and crew, he has learned the ways of communal life on the road. The former Whiffenpoof (that's a Yale a cappella group, not a Hogwarts house) is as prepared as a Boy Scout. He always has a blanket, just as a hitchhiker traversing the g…