Unless and until you can more clearly and comprehensively explain the results of the two slit experiment, rather than merely that the results occur, there is no reason to believe your thought experiments have any validity. Knowing there is such a thing as wave/particle duality is not the same as resolving that conundrum. If you actually understood why cows can be considered spherical but are not, you would understand why it makes no difference if you use sheep instead. So a better analogy would be that you are saying "Because we assume spherical cows, there is no reason not to assume spherical cubes."

Thanks for your time. Hope it helps.