Inconsistent squish across bed

If you take a look at the video, you can see that at (0,0) I am getting pretty good (maybe even too good) squish on my skirt/prime line, but on the other side of the bed (460,0) the skirt is now 2 distinct lines (measuring 0.31mm each) that have poor bed adhesion. Am I wrong that a correctly calculated bed mesh is the only answer to this? I dont have thumbwheels to adjust bed height on this VC3 like I do my Ender 3. I am printing PETG at 250 deg with an 85 deg bed temp per manufacturers advise. If I print more than a handful of layers, things go to hell pretty quickly. This entire VC3 project has not been as productive or satisfying as I had hoped. I am not sure if there is a fundamental alignment flaw at the core of my printer or something else is going on. Maybe my slicer settings just suck. I am happy I was able to assemble this to a point where it actually spews filament to bed, but this last 10% of getting something that prints accurately and reliably is starting to make me want a Bamboo or Prusa. I need a clinic. I dont even want fast prints, slow and reliable is fine.