I have been reading the discussions on this forum for a couple of years which have been very informative. This is my first post and I have a question. I have a 2012 Landmark Key Largo unit that came with the 4 point Lippert leveling system. There is a lot of "hoopla" about the 6 point system and I'm curious if anyone out there has had it installed on their existing 4 point. Any comments good or bad would be welcome. Is it worth the cost? Thanks. David Vest. Fort Worth Texas.