@leprint Funny you should mention that because I have adjusted the tension and lubricated these things many times but what I find curious is the height map DOES change when I adjust the tension of any of them. I have made a spreadsheet of how I adjusted each tower and recorded the height map afterwards. Then, I would save that height map screenshot, adjust another tower, then record the results to see if I could find out what's causing it but I could never find a clear answer for the cause of those dips and peaks you see in the heightmap. I even lubricated the channels they move up and down through and made sure every bearing was not seizing or clicking with no avail.