Oh yes, I've built quite a few actually, as I participated in various Earthship builds. The most recent one is the theater in Mazunte. But when it comes to stacking rocks I have very little experience. In fact, it can probably be summed up by this bit right here, where the bond-beam swoops down to touch the ground. In this application it's not more than playing around, but seeing your posts I have gotten excited about learning it properly.