Cob: rockin' the cob wall, rockin' the cob wall !!!

[SNAILHUNTr at aol.com]

so what does everyone think about the method of rock pushed into the exterior 
of a cob wall to decrease erosion? Im thinking it sounds good. Maybe it isnt 
necessary if you have sufficient roof overhang, I don't know. Being in such a 
humid area is nagging on my brain. Someone suggested papercrete, but the 
papercrete news site was a bit vague and it didn't look as pleasing to the 
eye as cob. 
    anyway rocks sound strong but are they really neccesary in Arkansas? 
(with a 20-30" average rainfall I believe, humid as hell i KNOW )

                                            Matthew