Got the same issue as before trying to flash the 91 tune over the 93 - took over an hour of reflashing to get it done ... but it seemed to eventually work.
Same performance results with my best a 4.7 in Track Mode taking off at higher RMP than with using Launch Control (4.9). I've tried to adjust the RMP on Launch Control but it always seems to be 2,000rpm (so I must be doing something wrong).
Looking forward to the Oz built CAI! .... or even the supercharger! This thing is adictive and 4.7 is just not enough