I think most shippers are prepared to live with this. Your point is well taken that in a lot of markets a lot of railway customers are in, they have to hold the price for a lot longer than 30 days. There are all kinds of fluctuations in the input costs they have. But as far as I know, most of the shippers are prepared to live with this 30 days, even though there will be times and places when that will cost them some money.