Serrano creaking floor

[Penguy]

I have my Serrano set up at the KOA in Little Rock. I have a gravel site and I have the levelers set as I have always done. At this location I am hearing little creaks that sound like movements in the frame when we move around in the coach. I have the parking break set as usual and I have checked the jacks and found no leaks or other problems. I have also checked and the coach is still level. I have never heard this caking before and I wonder if it relates to the gravel surfaced site or some other condition. I also thought that maybe I should reset the jacks at some point since I will be at this site for some time. I am not currently using any jack pads as the Serrano has a pretty big plate already attached to the jack already.

Any comments about what I am experiencing?

[anotherone]

Its easy enough to relax the jacks and relevel. Why not give it a shot.