Talk:Modernization/@comment-67.246.170.39-20150602191525/@comment-26486243-20150615100816

Kitakami

Ooi

Kiso

Ayanami

Ushio

Luck's primary effect is raising the rate of night cut-in attacks, and secondary effect is raising shelling accuracy by approximately 1% every 10 points. Torpedo Cruisers are optimal with Hyoteki + 2x Torpedoes, which makes their night attack generally a torpedo cut-in attack. Night torpedo cut-in rate is increased by approximately 1% per point luck up to 50 luck. Destroyers are the next most likely to use night cut-in, and ayanami/ushio kai ni require the least number of points to hit 50.

Heavy cruisers/battleships are optimal running dual gun plus aircraft plus shell/radar due to day DA, which defaults their night attack to DA, which already triggers nearly all the time. Carriers don't use CI/DA attacks.

You could theoretically boost ships all the way to their luck maxima for the accuracy bonus, but in terms of overall damage potential its impact is far lower than that of raising the night cut-in attack rate of destroyers, light cruisers and torpedo cruisers.