We use a 4 inch drop, alas the tow bar pivot point will sometimes drag at truck fuel stations, not sure what to do about it, we try our best to avoid inclines, but sometimes it's too late, because we cannot backup. Anyone else dragged before too?
2008 Gulfstream Tourmaster
2011 Honda CRV
Blue Ox Baseplate & Socket Wiring
Blue Ox Alladin Tow Bar
US Gear Unified Tow Brake