Once you start using it you will find uses for the sway back. Asd jeff said it is real good to straighten items. I have a 108lb Mousehole and it has a pretty big swayback but it comes in Handy. I wouldnt change a thing. Mine one of the corners is came un welded so once get a chance I plan on building it back up , but dont plan on filling the swayback up , its just to useful.
Chris