Ai Lights setting in cfg 3 x 24" Monitors 680GTX

Hi Since November I have been tuning and almost there. Only thing really left is the A I Aircraft lights, Unless I have the labels switched on I find it difficult to see any AI Aircraft Lights while airbourne unless they are almost in touching distance. My settings in cfg are

RUNWAY_LIGHTS_SURFACE_SCALAR=0.7

RUNWAY_LIGHTS_VASI_SCALAR=0.7

RUNWAY_LIGHTS_APPROACH_SCALAR=0.9

RUNWAY_LIGHTS_STROBE_SCALAR=0.8

With these I have finallygot the airport and Vasi lights just as I want them, but can anybody tell me which one I need to adjust to perhaps make the AI Aircfaft lights more prominent (but without the big blurring blobs they were without any light settings). I am running over 3 x 24 inch monitors which does make it a bit fiddly

Really appreciate if anyone know which one to adjust, and if its increase or decrease the numbers

Regards