KFZWMN? I believe KFZWMN is at 15 degrees at redline on the MED9.1, so even if you make KFZW lower it won't go below KFZWMN

is there so much to pull off the stock timing for 91 octane fuel?

The 2nd logs look better, although your AFR is very rich and your boost control seems to be oscillating. As for the timing, Look at your logs, and take note of the corresponding RPM and engine load values (these are the x and y axis on your KFZW maps). Go to KFZW and KFZW2 and make the changes you want to decrease the timing by how much you want, Then go to KFZWMN and make sure the values there are lower than the corresponding values in your KFZW maps, or else the timing will not decrease the way you want it to.

What does boost control have to do with timing?


What does AFR stand for? Lower means... what?

I think you need to step away from the car until you have a better handle on basics.

I agree with nyet on this, you need to do some more reading on engine basics and tuning in general before trying to mess with stuff. Initially i thought you just forgot about KFZWMN.
For oscillating, yes I mean its bouncing up and down. For AFR, go read up about AFR and how the Lambda value you are logging relates to it. As for changing the maps for load, timing and AFR, go and read the S4 Wiki well, the maps are for ME7 but still apply to MED9.1 and you can figure out the differences and extra maps using the FR. There's also a thread call MED9.1 Basics on this forum that has loads of info on your ECU.
Once you've got a grasp on all of the info out there, you will have a clear idea of what you want to set the values at in your ECU and how to change them before you even start editing your file.

At least you know logging is important, good luck!