Sight size for Sig p320

[jay_cue]

recently picked up a sig p320 full size in 9mm. I was looking for help on sight size to go from the #3 combat sight picture to the #2 6 o'clock sight picture. gun has the #6/#8 combo. I was wondering if anyone knew which sight combo would adjust sight picture to have a 6 o'clock hold. I was looking to try out dawson fiber optic front with a warren tactical rear.

thanks.