How do you guys set up your defenses on a gravship?

Initially, I had turrets scattered all over my ship, but I noticed that enemies kept targeting my coolers instead.

I finally managed to find enough gravlite panels to keep my turrets on the ship permanently, so I no longer have to dismantle and reinstall them every time I move. They now travel with me!

I'm curious how everyone else handles gravship defenses. Do you spread your turrets around the ship, concentrate them in certain areas, or use a completely different strategy?

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