A jig is very helpful, in general. Some folks build their own. I personally went with the Brushy Mountain one and have been really happy with it. A jig of some sort is definitely worth while.I'm getting ready to order some unassembled frames from Walter T Kelley. I've never put any together before and I see they have a "Frame Nailing Device" which appears to be a jig for holding the components while you nail them. How helpful would this be?