The big negative to me with the gauge "bounce" problem, is when I datalog outside of a dyno session, I would like to have at least my tach and speedo working, but they do not! Also the check engine light flashes too. How would you know when a real problem occurs. For a dyno session NBD, but for datalogging while driving on the road, track or running, it is more than a minor issue.
Seems like SCT hasn't address the issue and their iTSX works the same as their X3.