Chris,
always good to see someone getting stuck in;
a few pointers
1, the K multiplier is a global adjustment. so if the car is rich/lean through out you can use this quickly to adjust the calibration file.
2, when adjusting the air flow meter curve you adjust the load , reducing the the AFM curve will lean the fueling out but will also cause the cal file to run lowers own the igntion map so running more timing be careful with detonation;
3, the compensation map is a fine tune trim map for fueling good to use to trim fueling after building a good AFM curve.
4, you can also use the AFR layout map to adjust fueling once you have calibrated your AFM curve/compensation maps to the AFR layout map you can then change the AFR layout map to lean or richen the fueling. This is good for trying different AFR's under full load for performance gains while on the dyno.
Good luck