I was happy with Livernois on my Edge ST's, but ZFG is goooood. It really becomes a custom tune. And after a few submissions, I ran it for a while, then felt that 1-2 and 2-3 in Sport were too hard. Sent me a revision the same day, really smoothed them out. I am headed into week two, and I think I'll send it back in to get the 4-5 eased off a little, and then it will be done. Runs like a scalded dog.
Original tune was in the fall, didn't realize he would keep tweaking the tranny for me. I was too used to shelf tunes.