madmaxmutt - it's statics 101.
The torque that is required to transfer the weight to the front of the TV is huge. Just like a torque wrench, the longer the lever, the easier it is to apply the torque.
Spring bars are long, so the forces are small (and the opposing force is directed downward at the ball).
The Anderson hitch WD portion (under the ball) is very short, so the forces required to generate the same torque are huge. Also, the opposing force is placed directly against the underjaw. These parts were not made for this magnitude of force.
There is one type of coupler that Anderson says doesn't work, but I don't know which one it is.
I can't wait until I get my Anderson hitch! (New TV ordered)
It looks awesome, and a bunch of folks love it.
Me, Julie, Lil' Barry, Faith, and OSDs, Fang and Treaty
2003 Hyundai Starex (H1), 2012 Coachmen Clipper 126
I don't know when we'll be able to go camping again...