Primary Weapon, doesn't say "add 1 dice" though. It gives specific examples of if you have 1d6, roll 2d6 and if you have 2d6, roll 3d6. I doesn't mention adding 1 dice ever. The same issue occurs with Ordnance.
Does the Destroyer Weapon Attack Table not count as rolling for Armour Penetration as far as the Pulsars are concerned ??