Raffy, based on the V3/JB3 run, the tunes look to be very similar.
1) Your reaction time was almost .3 seconds slower
2) AT will walk MT 95% of the time
3) XI > I specially on runflats
In the end, the XI was some 0.4 seconds faster. Why would that even be a surprise to you?
Having said that, even if you were slower off the line and losing time shifting, you had pretty much similar/better trap speed, that I find very revealing.
BTW, are you going to Tremblant next week with BMW QC Club?
Note: I am no drag expert.
SB, Terra, 6MT. Only a few mods here and there.....nothing extreme!