Thats great, im assuming this means that the HP will slowly trickle down until the ship sinks?
And while on the subject of damage decay, is there any chance it could be tuned down in golden age ruins, it felt a bit aggressive on O7 - it could have been coupled with us taking a few hits from tornadoes but all the planks had lost ~1500 HP in the time it took us to find the hydra and kill it and get the stone.