Plastic table I use for my 3D printing stuff works fine but I've noticed a weird dip where my P1S was leaning right and AMS was leaning left. I decided to model something that would go underneath the table and push up on that spot.

P1S and AMS still aren't perfectly level but it's noticeably better.

Added to holes that curve with the radius for the bar where you can use zip ties to make sure it wont slide down the bar and off.