On my way out west I noticed that one of the disc type feet on out front landing legs was loose. I was able to tighten the holding bolt many turns by hand before I used a wrench to secure it. Two more feet ( I have the levelling sytsem) were a bit loose also. Had one of these come off on the highway it could have struck another vehicle. I therefore recommend that owners with these type of feet check them occasionally for tightness.