Mach3 XML and Stepconfig issues.

OK in Mach3 ( some occurrence of very long steps of shifting rpm's with maybe 20-30rpm is what I notice sometime.)

Will go down now and send latest hal if I get my network to work again. Also will have a picture of halscope.

Halscope

May I suggest you start a new topic in the HAL section of the forum asking the question "Why is Stepgen not outputting a steady stream of pulses with a constant velocity command?"
You might get more answers there.

What were your Latency test results like on that PC?

That doesn't seem too bad, if it was for a long enough duration of time, with a sufficient load on the system.

Could you try running the Latency Histogram, from the apps section of the config picker.

I am kind of baffled.