Hmmm....I downloaded this file into my computer to take a look at it and see if I could spot something set different from my other files. Didn't notice anything. That said, I could've sworn there was a way to adjust the sound startup delay in these too, but I guess that's only available in (some of?) the non-sound decoders? If this is indeed the case, it's interesting that you can adjust the startup delay (by quite a bit) in a non-sound decoder but not in an actual sound decoder. Also, I could only find mention of how to disable the startup delay in the manual but not how to adjust the startup time. For clarification, are you leaving the throttle at a certain speed setting or are you increasing it when the loco finally starts moving?