Be aware that swapping 8 8-inch turrets for two 16-inch turrets is not an equivalent exchange (cookies for reference). There are beam and depth issues.
Also, if the Japanese are halfway successful in this AU they wouldn't be resorting to literal suicide missions (i.e., an Okha-carrier)
Yeah, I missed the part of this being of Burke's fleet so obviously this doesn't apply. I've actually corresponded with the guy a few times, so I should know better :p