Folks I figured I'd start inexpensively. I picked up a LokPilot Standard today, and put it in a Bmann Heavy Mountain. I wanted to see how much the motor control could be improved, before I started investing in sound. It can be improved a lot! Accel 16 CV3 Decel 16 CV4 BEMF Ref V 80 CV 53 BEMF K 10 CV 54 BEMF I 50 CV 55 Start 1 Mid 18 High 64 And I'm happy My questions are 1) Once the grinding stops, How do you find the "Best" CV 53, 54 , 55? I'm not noticing much change, once I get to "Good' Running. 2) I'll keep reading, but can I get the Headlight to Dim? Edit - it won't matter, on this model 15 is the brightest setting. I'm not swapping the bulb, so the brightness is set 3) The version LokPilot V4 Decoders (a little more expensive) Is the motor control improved? Thanks Every BMann tender, that fits this, is probably getting one, unless I go sound.