On our 38ft 5th wheel the tripod makes the front bedroom area more stable. Here's my test- before I put the tripod in place I push on the side of the 5th wheel at the bedroom area. I am able to cause the front of the fifth to rock just a little. Once I install the tripod and put weight on it I can't make the front of the 5th wheel rock.
Keep in mind that I built the tripod using square steel tubing and other parts I had laying around. It is strong enough that I can support the entire weight of the front of the 5th wheel which has come in handy a couple of times when I needed to work on the landing gear.