That C 165L is a beast! I ended up using it as well after multiple tries with other 6.5 inches woofers.
I wonder why did you used blockers on the 100.3? Don’t they have some already as coax speakers?
Mike, question; if I get another design and later if you guys settle the royalties with Ford I get the Bronco and flag design will it be interchangeable using the already installed Velcro? I would assume yes but want to make sure.