Checked the screws and they aren’t going anywhere. I also installed them with some blue Loctite so they should stay put.
I put photos of my wiring in this other post
From checking, it all appears correct. So guess I just need to increase the current to the Y axis? A photo of my gShield is also on that post. Out of the 3 white boxes with screw heads, is it the MIDDLE one that adjusts the Y axes? (the one to the LEFT of the Y axis letter)