Over the last 2 months, I've debated on which tune to go with. I see pros and cons in them all, but it looks like I'm going with the JB4 due to the ease of install and uninstall (leased until I determine if it's good enough to buy). Through all the data logs of all the tuners, the turbos on our 3.3t just appear completely overworked with tunes. They are running out of breath at 4.5k-5.0k. With that said, has anyone with a tune been to the track yet to play with shift points to see if performance is improved by staying within the power bands? I don't have a logger and it's too hard to keep my eyes on the gauges when trying to make an early 5k rpm shift under load to see the upshift's rpm point. If anyone has any data, it would be greatly appreciated!