I've discovered why AX pilots fighting Thargoid Interceptors with shieldless ships do not really need caustic resistance on their armour, and so don't use Guardian Hull Reinforcements as a result:
"Tharghoid Interceptors to Absolute damage against your hull if you have shields. And Caustic damage if you don't have shields."
I'm going to be fighting Scouts for a while where caustic missiles are a thing, and I can't always dodge the caustic cloud left behind by Scouts when they explode. So looking forward to trying the Guardian Hull Reinforcements.
"Tharghoid Interceptors to Absolute damage against your hull if you have shields. And Caustic damage if you don't have shields."
I'm going to be fighting Scouts for a while where caustic missiles are a thing, and I can't always dodge the caustic cloud left behind by Scouts when they explode. So looking forward to trying the Guardian Hull Reinforcements.