IF I HAD A SWIVEL ON IN MY WRECK DONT THINK ID BE HERE TO TALK ABOUT IT . PRINCIPAL GOOD BUT DOING 60 MPH SWIVEL WOULD HAVE KEPT TRAILER UPRIGHT AND PUSHED ME OFF THE ROAD ! ME N TRAILER SLID ON SIDE 97 FT. CRASH BARS WORK !! WORN OUTSIDE STEEL BAR TO INSIDE .Bill, Tom Finch used to discuss swivel hitches occasionally, and I bet you could spend a few quality hours reading his opinions. To summarize his opinions, he basically thought they were evil and unnecessary. Some of his thoughts were salesmanship, but they were mostly engineering-type comments.
I do know (DAMHIK) that a regular hitch will survive a tip-over!