OK it come to my atten. that any time make a adjustment to the speed calibration, it changes every bin to whatever you enter in to the table. it will change the a4 to a m6. and the gear ratios will change. so whatever you change. it will be copied in the other files.

but you can open a file to say (change the spark advance) and it wont change the speed tables. but it will if you open the speed tables and make a change and i mean you dont even have to calculate or apply it. if you open the file and change the tire size and hit ok and thats it, when you save it messes up all the files.