Currently running 1.8T TT quattro with GTX3076R setup with forged rods. Current wideband tune (018H ECU) is happy at 20-22psi, mild knock corrections and ps_w follows boost curve pretty closely.
I'd like to push the boost further (up to 30psi eventually), which means I need to downscale KFKHFM and upscale KFLF. (I have looked into 5120 hack but could not find many of the maps mentioned so for now put it to side)

I have modified the x and y axes to match in the high load areas for both tables and am trying to understand how to correctly adjust them.
Will the attached work correctly as an initial pass or have I misunderstood it?

Sorry, what do you mean by too much difference?
I'm not planning on going straight to 30psi, but gradually increasing it until some other issue/limiting factors comes into play (I am also monitoring AFR & EGTs via dash gauges with an audible alarm when it passes 900C)

Am I on the right path in my approach to modifying these maps to start increasing boost gradually? Would these modified tables be safe to try out at current boost level?

I am near the ps_w limit so any boost increase will hit the limit which will result in incorrect fueling. Changing these two tables should help me to overcome this.