In the "Getting Started with Woodworking" video, the holes through the 4x4's were drilled from the back. That is, they start on the side opposite the precisely-positioned mark, and drill through to hit it. If they can do this, more power to them, but I can't drill through 3-1/2" of wood to emerge at a precise mark without a drill press - and not always then.
I like the idea of re-inventing the wheel. I choose to believe that while others may have considered these improvements, they just never got around to trying them out. Brain gets bored with status quo. So, I try to keep Brain happy with the occasional foray into uncharted territory. And I must say Brain has had some really good results. Thanks, in part, to you, and the Roy. You never know where a good idea might come from so I’ll check in once in a while. That and make sure to build it in Sketchup first.
Over 1,400 color photos and drawings illustrate the methods, from simple butt joints to angled tenons and complex scarf joints. A project as simple as a box, for example, has a dozen ways to solve the joinery question. And, since many joints can be used interchangeably, Joinery leads you through making the right choice for your project based on the function of the piece, the time you have to work on it, your skill level, and your tooling.

While a strict figure for the bench’s weight capacity is not available, a quick browse through their other stand and bench products shows a general weight capacity well above most other brands. As such, while we cannot say for certain that this bench provides the best weight capacity, it is more than likely that it the capacity is similar to the other products in the catalog.