sweet, nice. i'd like to do this to the XT Turbo once it's up and running.
is this set-up reliable? or constant maintenance?
Once its setup its good to go. I can help you out when you're ready. The only thing I know of that MS doesn't address that most OEM's do it Baro check during operation. So if you changed elevation 3-4,000 ft without ever restarting the car, the tune could be off a bit but as long as closed loop is turned on and allowed to modify A/F it should take care of most of that discrepency. That's the only thing I can think of.
Since WJM is changing motor series, perhaps he'd be so kind as to send us a MSQ file