I have sort of raised an issue which I discovered when trying centre boom sheeting, which nobody has really replied on. That of the problem of the angle of the sheet from the centre point to your hand when wiring from close to the front beam, it hits the side stay and forces you to pull the sheet around the stay or drop in and pull the sheet through in front of the stay. The position of the sheet is so comfortable though that it is worth trying to work a solution on.