So, pretty aggravating evening. The current for the motors are as follows: x .83, y .8, z .73, e .79 so I tweaked the extruder to .82 and then I focused on the z motors. I adjusted it to 1.05, still the grinding noise. Upped it to 1.11, same thing. Dropped down to 1.01, z motors still acting the same.

Now, does it matter if I have the USB and power supply hooked up at the same time? I tried with just USB and of course motors have no power. I tried with just power supply, and motors all work; however, the z motors are still being stupid.

I'll have to try some more stuff tomorrow.