Hungarian now yields (could still use a little work, but waiting until correct to not complicate the timing calculations); using the find-minimum in FindZero() again, with the key difference being not calling min(); successfully ditched the Mark table and Star value, flushing Primes out of paranoia; cleaned up some of the star management, particularly those that don't need conditionals; pulled out cover and uncover operations for rows and columns to be easier to analyze, on the thinking that those are where the mystery issue must be