Rick, I try to stick with one brand to simplify things. This enables me to keep in line with what the vendor has to offer and eliminates a lot of compatibility heartaches. I pretty much went with Kato and only run their locos and freight. As for the decoders I chose Digitrax. Although their system is complex their offering supports my overall needs. It is complex but offer a lot more. Based on previous entries you are running MRC and I do see that their information is some what convoluted. I also noticed that the Prodigy Advance 2 has an easy address feature which does not work on all decoders. (This is why Rick wants a flowchart) It appears that some manuals have more information than others. #0001828 has more data than #0001644 so it looks like one has to piece data together. The key is to use instructions from the Cab manual and decoder manual to get things going. It will be somewhat drawn out. The best approach is to create a punch list of functions and features that you want and then locate the CV associated. Go through the CV list and highlight the descriptions that matched your punch list. For example you need to use the long address because you want to use the road numbers for loco ID. That is on your punch list so locate the associated CV and highlight CV1, CV17 CV18. If you want to tweak your speed table to get the slow roll then flag CV2 CV3 CV4 and CV6. Create your punch list so we can see it. Inobu I think I'll pick up one of these decoders just to see what is going on to compared it with Digitrax.