[Formulabruce]

1. Without the pull straps, people pull door shut with what? The opening lever? Or yank on the armrest pad, or most likely yank the lower door panel. I have owned a couple std interior cars and the lever and lower door panel gets ruined, the arm rest pad comes off.
2. You can put a larger clip behind the strap, and you can run a longer screw into it and start a pilot hole in the door, and run the screw into the door, that really firms things up.
I have even welded a nut in the door, and used a machine screw and a washer vs a clip.
On later cars with a armrest handle, I weld a nut to door as well to keep the handle from getting broke