no... I think it's easier if I explain what happens with my feet.

The "four corners of my feet" that naturally contact the ground are the two corners of my heel, the head of my fifth metatarsal, and the head of my SECOND metatarsal, not the first. Because the big toe is so important for balance, my ankle rolls inward to get the big toe onto the ground. If I place my ankles in neutral, then the pad of my first metatarsal is not bearing weight.

There's the problem. It's not just "overpronation" per se, it's all the imbalances in the calf and foot muscles that my body does to try to compensate.

I think what I might try (street shoes first) is ditching the orthotics and only padding the head of the first metatarsal, as the trigger point book suggests. That should help strengthen my feet because I'd be using my muscles, not arch supports, to support my arches; but I'd be using the muscles that ought to be supporting them, not trying to pull them sideways with the peroneus, etc.