User blog comment:Hayashi H/Advanced Equipment Guide/@comment-26486243-20160303132427

Just a note that this guide version is outdated and will be pending a major revamp due to:
 * Iowa gun
 * Best gun for Support shelling
 * Ability to upgrade Prototype 41cms and 35.6cms
 * Don't upgrade plain 41cms anymore, since there's no way to convert them to Proto-41s as of yet.
 * The earlier advocated 35.6cm max★ can now be converted to protos for power similar to that of 38cm kais when fully upgraded.
 * Seaplane upgradeability
 * Ro.43 adds 1 FP, which turns all the 99 FP CAs into 100 FP without having to upgrade any No.3 gun past 4★.
 * Ro.43 are also the best seaplane for CLs now, as they add FP and Eva.
 * T0 Obs Seaplanes remain BiS for Battleships as they do not benefit from further FP, but will benefit from the higher LoS
 * At present, upgraded Seaplanes have unconfirmed effects.
 * Ro.44 are currently bugged. Investigation and/or bug fix underway; in the meantime do not make any.
 * Zara gets her own section as her build is very different in nature from all other CAs