What motor are you using? I'm still troubleshooting at this point. I couldn't recreate the stutter and it may only do it once during a run and not for long enough to matter at all. I tried a new sensor wire so my options are either motor or software and it only started doing it after the firmware change so that's the next step.

At this point I would still suggest a HW over a Tekin but that is only my personal experience.