But seriously, my experience with GF, rather disappointed. I got my A mode activated and subsuquently I starts to have jerks.
Luckily someone recommended danny to me and got my problem fix. After fixing now I can actually do it with C mode, and I can feel the drive was much much more better then job done by GF in A mode.
Problem: wrong code used, didn't change all the setting as it should be.
Reason by GF: A mode dont cause any jerks.
My 2 cents worth, good tuner is hard to come by. Danny good job!