Tthat might be helpful to some, personally. I could've also posted my life story, about how I have been designing and building things for decades, about how I make my own tools to make things (sometimes I make tools to make tools to make things). The only help I need in this thread, and already got, is determining whether shortening the seat tube reduces the frame strength. Apparently nobody disagrees with the idea that it doesn't. That's good! I'm satisfied. How are you doing today?