I would like to hang an electric bass guitar on my wall, but I am not sure if the wall hangers would cause too much stress to the wall. Does anyone have a hanger for their wall? I am thinking of getting this one: http://www.guitarcenter.com/String-S...21-i1142095.gc

It looks good, and sturdy, but I just am not sure if it will cause too much stress to the wall. I think the wall is made of plaster.