I want to make sure I am reading this right as it seems very different from the norm.

Hissho have a very tiny system limit (2 on default settings, going over is a 5% FIDS penalty per system). They also don't get the passive increases from techs (Pooster and so on). However their behemoth mining drones give FIDS to the home planet and they get a very good mining drone from their main quest. So the idea is to purge invaders in your locality so they can't disrupt your drones and your home planet is effectively your backbone of everything.

Do I have this right?

Thanks for the tip. The game has been going well. Mining about half my starting constellation now and am pumping out 3 medium ships a turn on my home system. It has been a chore purging the Cravers from the system. Especially since the freaking Vodyani keep trying to sneak Arcs in. Half my wing of the constellation has ruined arcs. I have two mil Behemoths patrolling my area just to keep it clear of sneaky bastards. Oh plus a wave of pirates spawned on 3 systems clearing them of probes (roar!). They spawned with 800 defensive manpower (head + wall = me).

So its been a great game so far. I might get bored once I am done purging the Cravers and Vodys.