Gonna mention this yet again.
Because of the buff bug fix, buffing the hull now restores armour each time, even if it's already buffed. Putting multiple buff hammers on the hull can render a ship essentially invincible. I think it should be changed so that only a buff on an unbuffed hull add the extra armour, and any buffs made before it runs out only make it last longer.
A couple of days ago I was on Frogger's Junker with a couple of other Ducks, and when we got in a bad situation we decided to see how long we could survive. We were getting rammed into the ground by a blenderfish (so double impact damage, and at a pretty solid weight disadvantage), but the double buff hammers on the hull made it so the armour never even got popped. It was essentially like having three mallets working together (if they could ignore each other's cooldowns).
Once again, this seriously needs a fix.