Things that bothers me...

[JohnCarver]

No less than a week.

[RonPaulFTW]

As stated above the big annoyance the high cost causes is that it makes it incredibly expensive to add gates and redesign your wall layout, which is not uncommon for many newer players and from time to time even larger established towns.It would be nice if there was a way to take down walls with out causing splash damage.

You can. Freshly built walls shouldn't be splashing for quite some time.

Established towns often want to redesign wall layouts?

[JohnCarver]

Established towns often want to redesign wall layouts?

And they now appropriately realize the advantages of creating designs that are more resilient to change.