Does anyone really know the difference between the seats for the FXD's and the FXDWG's? Specifically the years 1996 - 2003. I see some Corbin seats for sale that I would like to buy, but they specify Wide Glide. I've heard that the rear mounting tab is longer on one than the other, but never to any degree of certainty. I figured with the vast storehouse of knowledge here, that someone would know.