I hate to bring up old stuff, but I remember when you brought up the thought of doing these chassis's. Everyone, well not everyone, but alot of guys were fussing about how you cannot build a chassis with out a jig. The were yapping about "squaring up this" and "not without a jig table that!!" Now your chassis's are the talk of the site. I commend you on such an exceptional product. I followed your 57 frame build and loved it the whole way. These frames are ahead of their time. I have no idea of how to build a chassis with a jig or without one, but again I give props were props are do. You have a beautiful lineup of frames.