Turns out that Max Speed can't do a dyno turn on my Buell unless I have a Power Commander. And PC doesn't make one for the XB's. So I have 3 choices. ERB race ECM, ECMSPY Mono and lots of prayers, taking to the awesome Buell mechanic at HD Greensboro.
The most hassle free will probably be the race ECM. I am not enough of a mechanic to mess around with ECMSPY. If something breaks, I can swap parts out. But tweaking fuel ratios and timing. I'd screw it up.