I was pretty much just chasing down hunches and trying to verify the condition of things that may have been causing a problem, I don't know that the DRAC should draw any current with power connected or not, the output speed sensor will generate a AC voltage as it runs anyway - so that may be what really powers it up.
I'd found the UD and Harris tuning links the other day when looking, can't get the atracom link to work though. It would be nice to get an explanation of how the DRAC does it's job so I'd know what to look for.
I did use the Harris link to set jumpers on the DRAC I do have, the speedo has always read a little fast so it was worth doing and I'm curious to see if it makes a difference.
I honestly think this is going to end up being a 7060 with bad output drivers.
Nothing else makes sense to me after all I've looked over, the replacement ECU will be here early next week...and if it's the correct one I'll know more then.