So, I originally got this idea when I looked at the Spire for the first time months ago, but I think it's time to share.
Now yall know how there's a big 'shield' on the front of the Spire? Right below the main gun is a giant metal crest like thing. What if that was a more reinforced part of the ships armor? A gatling when hitting anywhere else on the hull would do standard piercing damage, but hitting that plate would do only half damage.
This dynamic armor could be used on all ships. Ex.
Pyramidion has heavier armor on the front
Squid has armor near the engines
Galleon has armor around the guns
Goldfish has armor on the sides (everyone sees those big fin like plates)
Mobula has armor covering part of the front of the balloon
Junker has small pieces of armor spaced apart randomly-ish
These would compliment their respective ship's strengths; Squid's maneuverability, Galleon's guns, etc. Strategy would then have to be modified a bit to counter. Ambushing a Pyra from behind, choice between focusing on a Galleon's hull or guns, aiming your ram at that Spire somewhere other than its front.
This would require better gunning in order to hit between the chinks in the ship's armor. It could also open new ammo types, things like steel-cored rounds to negate part of that extra resistance.
Would this drastically change gameplay? Would it make certain ships overpowered? Is it plausible to implement into the engine? Discuss.