Just a couple of thoughts.
I agree a thinner plate would cut easier. I originally had planned on using a 0.025 plate then realized I was out of brass back slotted for 0.025. Hence the thicker plate. I had also planned on a cross cut. It was easier and quicker for me to file it rip. I am still learning to file properly. This also made it easier for me to compare two different hang angles on these last two saws I fumbled together. Even the finish on the handles is different. One is "True Oil" the other is Deft Wood Finish. The Deft was faster, but probably less durable.
As far as functionality: I have always been one of those power tool guys that was all about the function of a tool. (Pre hand tool days) The plate under the handle does get used for about the first 3 inches. Part of the extension was aesthetics as well. I am one of those guys that will not use a tool if it does not feel right in my hand. I also think a tool should have a certain visual appeal. George Wilson, Klaus and Pedder, Ron Breese, Konrad, Etc. are excellent examples of blending functionality with beauty. I think a hand tool should beg you to pick it up and feel the functionality and craftsmanship. Make sense? Unfortunately I lack the skill set the above mentioned have. SO I just putter along, trying different things, and trying to be just a little different.
Lastly I do appreciate the comments (C&C) What would we do without the internet? Thank you.