Printed the leadscrew adapter https://www.thingiverse.com/thing:1147438 as a test. The Z axis dimension came out pretty much spot on, which was a pleasant thing. Oddly, X came out as expected, but Y was short by about .022 inches. The hex "nut" part came out a bit off as well, indicating X was fine, but Y was short. Since I am certain my X and Y steps/mm are correct I wonder what the problem is? I know about the jumpers for steps on the control board at least in theory. IF I read the information correctly, the jumpers appear to be the same for both. I'm not sure any difference in jumpers would result in that small an error in any case. I do, occasionally, while printing hear what I might term "stepper stress" that I think I recall from years past as trying to step "too fast" or accellerate "too fast" under some conditions. However, if it lost steps, I would expect the print to be "offset" from there as the print progressed. Sigh.