My idea for comfortable shoulder carry has always been to balance the load. With a steel framed 1911, that would mean a bunch of mags. However, this isn't a bunch of mags, its a BUNCH of mags. I think that this would reverse the situation, making you unbalanced to the other side.
BTW, I've seen those pics before, but I can't remember the site. I've looked for it a couple of times since, but no dice. Any chance I could get a link?
~~~Mat