Hi CRD,
We did design the machine in mind that some machines may have overtightened parts or misalignment. If because of that the machine is stalling we can help users on a case by case basis, but as far as I have seen, there have only been a couple of people who needed to realign their machine which doesn’t take that long.
When the machine is moving rapids/high feed rates, it is most prone to losing steps. The default settings have worked well for us, however we do go into further discussion here: Fixing the X-axis Torque-out issues
Best,
Andy