'Evening gents!
I had to laugh when I was reading the "debate" about DC -vs- DCC, mainly because the DC users will read the following account and say "See, I
told ya!" I spent most of this evening trying to create a roster entry for my new GP7 in DecoderPro. It took me much longer than it should have, because it had been nearly a year since the last time I programmed any Tsunamies and had forgotten a few things. I found the entry for my type of decoder easily enough, but I overlooked a few steps when I "wrote" some of the changes to the decoder - and that led to the loco being totally unresponsive except for the lights.
After much trial and error, I noticed that the DecoderPro DCC address for my roster entry #6406 was "3". And when I went into the panel to correct it, that setting was
disabled - WTF
I ended up nuking that roster entry and re-creating it. Apparently, the first time I changed the setting for the default direction to "reverse" (i.e. long hood forward), that also automatically reverted some of the other CV29 settings to their original defaults - including the bit that determines which DCC address [long or short] is the active one. So on the second go-round, I carefully examined these auto-defaulted CV29 values and changed them back wherever necessary - and
voila, problem solved! Now I have the Bachmann GP7 speed-matched with 2 of my Genesis GP9's, and their 567 prime mover sounds are harmonizing quite nicely together!
DCC certainly is a PITA at times like this, but I gotta have it if I want to keep hosting group op sessions on my layout.