The tripod actually does a very effective job of stopping the nose of the fifth wheel from moving from side to side. Coupled with wheel chocks and a good set of stabilizer jacks on the back of the camper, most motion can be eliminated.
I used to use one, but made a set of stabilizers for my front and rear jacks, so don't need it any longer. But the tripod was just as good at stabilizing the camper. I just didn't like bumping into it all the time.
As for taking weight off the front of the fifth, that wouldn't seem necessary considering the beating it takes going down the road.