I will say the extruder does seem like its pretty “weak” compared to my printrbot. That thing will rip it right out of my hand. But I did measure z, and it is moving correctly. I also measured my extruded filament, and its exactly .4mm. Hatchbox PLA filament measures 1.75mm to 1.76mm.
I will try another quick print just to double check everything after saving everything again.