I do walk around work, this method has some angle issues that make it bad for walk around and/or
large crowds. It's still a good method, but probably should have been closer to a $15 price point.
Much of the DVD is wasted on the Mengel brothers backstory. I had a hard time understanding them at
points, but watching multiple times cleared that right up. I've seen this effect elsewhere, just
can't recall where a few years back, so the method definitely isn't new, this is just a different
handling of it.
Wait for it to go on sale.