Thank you all for your replies. Crimping isn't a problem, I have the proper tools here at work.
I have added the heatsinks on the stepper drivers and the microcontroller, added the fan and raised the unit up (with the elephant feet). I still get random occurences of "head wander" so I am at a loss to know what is going on. Here's a photo of a typical blown print:
It's just a jump to the left...
It really drives me in-sa-ay-ay-ay-ay-ane.
FYI that's ULTEM PEI sheet we are printing on. Works great with PLA and ABS. Cools down and you just lift it off. PETG sticks a bit aggressively. I've had the surface of some printed parts flake off and stick to the ULTEM so I would be leery of that.
We've ordered a new controller board set (v2.1.4) and will swap out.
Thanks again for your assistance!
Tim