If there's one thing about golf that still makes it difficult for a chap to have fun it's the putting green. One can cope with BMW Envy in the car park, Pringle Envy in the 19th Hole and Ping Envy on the fairway. But Putting Envy can be the undoing of a man. Have a bad putting style and you might as well be a bad lover. You're a loser. And one should just accept it. Now there's resolution in sight with the assistance of yet another infeasibly clever USB-type device simply crying out to be firmly inserted in the nearest slot for Universal Serial joy.