Lower door, fender and quarter trim clips

[Tinkerr]

I'm installing the trim and have 2 styles of clips. The green one in the picture is one style , the red the other. I like the way the red clips fits. It seems much more secure than the green clip. I have a original door molding and the red clips were used. I'm assuming they would work on the fenders and quarters. Anybody have any experience using either type? The red clips have a foam around and in the contour of the clip that is still pliable after 50 years. Any idea how to replicate that? Spray foam won't work because it doesn't stay pliable.

[Tinkerr]

Picture #2