I am converting a Wurttemberg C/Br 18.1 using a LoPi V4 decoder. I am having lots of trouble getting the slow speed (steps 1 and 2) to run smoothly. Steps 3 and up are fine. Does anyone have a CV setting for "K slow"-CV 52 and "I slow"-CV 51 that worked in your own loko? TIA

I got it. This is one of those situations where programming from the ECoS controller works better than the LokProgrammer. I started with the ESU recommendations for a Faulhaber motor. LokProgrammer has several different motor types you can choose from and it will write the appropriate value into the fields. I found the settings for I-slow and K-slow, two new CVs ESU has added in the V4 LoPi and LoSound decoders, were terrible. These two CVs affect motor running characteristics for the first two speed steps. I then changed I-slow (inertia) from zero to five and moved K-slow (influence) from 32 to 85. K (influence at speed steps 3 and up) which LokProgrammer defaulted at 80 plus 5. These were suggestions from the LoPi manual. It still ran poorly. So on the programming track, where I could make changes quickly and immediately see the results, I started dropping K-slow by a value of five until I ended up at 10. So the settings are ESU default and CV52, K-slow, at 10 and CV51, I-slow, at 5.