I think the interpretation of the double slit experiment is wrong. If you aim your photon or electron at the center between the two slits it will go someplace (roll toward a slit lets say). In doing so it will leave part of itself (maybe just a charge) as a trail, and when it goes over the edge it will again leave part of itself (a bump) glued to the edge. The next time it squiggles along the same trail, it will hit that bump and bounce, but still fall through a slit without touching the inner edges of the slit. After doing that a few times it will hit the inner and opposite wall of the slit, and again bounce maybe toward some outer edge of the receptor. It hits the wall (the receptor), not as a wave, but still as a particle. That is, the individual photons or electrons are hitting the wall. Otherwise, if a wave were hitting the receptor - the whole wave structure would be hitting the wall at nearly the same time. You would detect the whole wave hitting at once rather than the particle. Your slits would need to be thinner (front to back) than the particle to minimize the bouncing effect. I'll bet if you weighed the particle at start, and then at the wall you would find that it was lighter at the wall receptor due to leaving the trail and bump on the slit material.