I just got a new SPROG 3, which means it is finally time to speed match, program, consist, and do everything else to my locomotives. I am looking at setting up some speed curves, but the default settings are just linear lines between the Vstart and Vmax CVs. If real trains had DCC decoders and speed curves, what would they look like? Would they be a straight line, or would they have some kind of curve, logarithmic or otherwise? There is still a lot to explore with momentum and BEMF, but does anybody program their speed curves with a low bottom end to simulate starting a heavy train, or do you use momentum CVs for that? I have heard people talk about having their yard power and road power having different curves. Most of my stuff is modern road power, so I think 70 scale mph as Vmax is good. It will look good on fast intermodals, but it isn't over the maximum speed of the prototype. This might be kind of a weird question, so I hope I'm not overthinking this.