2-7 has only worked out for me once. At the end of an SnG, where I was putting on a clinic in "Power Poker" for my last opponent; I had an ~8 to 1 chip lead. He limped with KK, I put him all in. Flop 456, turn 3, and just to rub it in, a K on the river. I must admit, 27 has beaten my good hands on many occasions though.