Hu insulted my steppers
Was that payback for my aluminum comment on Onecnc?
Seriously though, my 700oz ones provide enough torque to snap a 1/4 carbide endmill in half and not miss a step. I think that geared right, they can provide a cheaper solution that will work just as well in almost all applications.
Try disconnecting the stepper from the axis and running it in Auto mode. If it functions fine without load, you'll know it's time for an upgrade.