Which unit? MT-2?
For my weak mind it gets a little maddening sometimes trying to tune. There are only 500 rpm increments on the MT-2, and 1000 rpm increments on the MT-10.
The PSI jumps on the MT-2 are also in 2? or 3? psi increments and 3+? on the MT-10.
This means the software "interpolates" in between cells/values.
So if you change a cell at 7000 rpm, with the MT-10 it can also affect what happens at 8000 and 6000, or in the case of the MT-2, at 7500 and 6500.
The low end is harder for me to tune.
Good luck and hopefully you won't have to spend as much time on the dyno as I did.
Walt