Cooling settings of gentlemax pro

Hello everyone
could you please help me with the gentlemax pro settings.
I use Alex with duration: 3ms and rate: 2Hz
Fluence: they used 12J for my chest, breast hair and my upper lip hair(face) and 8 to 9 for my arms

Both fluence worked well with me with no side effects, but my concern is on the cooling settings
They used 40ms and delay 30ms (40/30)
is this cooling setting might cause pigmentations with the previous laser settings?

Unfortunately i don’t know what is the spot size used… Does that matter too?

My skin type is III ( i’m from middle east )
Please help…