November 7, 2020 Update: This week I made a lot of progress on my bullpup muzzleloader project.  However, it looks like I may have to modify or redesign the fire control mechanism.  In the past, my trigger mechanisms have usually been excessively stiff, so I tried to design this one for a lighter trigger pull, and I may have gone too far the other way.  On full-cock, I'd guess the trigger pull is about an ounce, and if you put it on half-cock and pull the trigger it will slip out of half-cock.  I'm also having issues with light strikes on the percussion cap.  However, it is fun seeing it come together, even though I clearly have some bugs to work out of the design.  On a completely different note, I think this weekend I will upload the video about my glass-filled PETG filament idea.