I have taken a slightly different approach to data logging and are using a LM-2
LM-2 Wideband O2 Digital Air/fuel Ratio Meter
The idea of changing parts, changing tunes, generally just mucking about in the ECU without any data to see what is happening is just scary.
The first thing I did was to start with a baseline, before changing any parts install the LM-2 and record TP, AFR, RPM, MAP, etc.. The LM-2 plugs right into the ECU OBD-II.
Unfortunately I took advantage of the fact that the stock narrow band O2 sensor can be turned off in Tune-ECU, did so then made a spacer to install the wide band O2 sensor in the same location.
As the bike is new and being broken in only did idle, cruise and short partial throttle bursts. What surprised me was just how rich the bike ran with low throttle cruise in the 12-13 AFR and richer on acceleration.
Back in the shop welded in another O2 bung, installed the wide band there, reinstalled the narrowband in it's original location and turned the ECU narrow band back on.
Now steady state cruise is in the mid 14's AFR as would be expected and acceleration in the 11-12 AFR.
To me tuning is like welding, part science and part art. The tuner needs not to just have the right equipment but also the talent and experience to do the job well. Which is why they are few and far between.
Rick