Making a planet that requires the protection against certain professions using a voliir transgenic lock

Currently has a Xectiphage tower that protects against Mylarai, Konqul, Zolazin, Lazuli, Sillixx and Uldrian
What would be the best selection to use for the voliir so that the maximum amount of people aren't allowed to invade?

Excavator, thats what most sensible higher ranks are.

the only problem with that is that governors and hackers aren't popular (the other two professions in the selection)
Plus, Konqul (the most popular race, come on, att bonus) is already fully taken care of with the xectiphage

Konqul probably for mid rankers, but overall I'd say Talth due to the arti bonus. Taltherian Excavator imo is definitely the most common race/profession combo. Arti is king in this game.

You cant have both a Xectiphage and a Voliir Transgenic lock on the same planet