I'm racing with a Quantum main which was new last year and am happy with it Steve and I both had good boat speed against each other so I would sail it was sail handling and luck that made a difference head to head
the real question is what kind of sailing and racing are you going to do? are you going to roll the main? is the going to be used for racing or cruising? flogging which will happen when day sailing will probably age a main faster than anything