Rowlers, i have to admit that i never adjusted any torque output through the handset. The handset had the map file, along with the TCU map upgrade, i was running a dsg gti. That made the gear changes a lot more snappy. No slip just bang on gear changes (when you wanted to change).unlike the mk8
It was so easy to install, if you go for it, a little tip, the ignition needs to be on while installing, it needs to maintain 12volts through the process so i run a pair of jump leads from the wifes car on to mine. Takes around 30-40 mins. If i can remember!
The instructions that are on the handset are really easy to follow.
I only ever ran the car with the induction kit, as i did all the upgrade at the same time.
I know there are other maps available through different suppliers, Raceline,etc. As i said before, do as much research as poss. I can only comment on my personal experience with mountune.