Talk:Medal/@comment-188.18.93.188-20151125173456/@comment-26486243-20151214075801

Assuming you already have spare blueprints for new BP-ships, and given each blueprint is also worth 16 screws (4 screws/medal, 4 medals/BP),

The top candidates for repeat-blueprinting for equipment are:
 * 1) Choukai (219500xp) - Skilled Lookouts (43500xp on Takanami/Kazagumo), Searchlight (181500xp on Sendai), T22 Radar Kai 4 (29 screws minimum), No.2 gun (73167xp on Ashigara per gun). Profit on blueprinting: 13 screws, 78667xp. Recommended.
 * 2) Yamashiro (383000xp) - Searchlight (181500xp on Sendai), Proto-41cm (unobtainable otherwise, power ~ 41cm twin gun 4*, 8 screws), Zuiun Model 12 (unobtainable, no equivalent). Profit on blueprinting: Zuiun Model 12, -8 screws, -201500xp. Recommended only if you use Zuiun a lot - otherwise, Choukai K2 is better bang for buck.
 * 3) Bismarck (319000xp, 2 BP) - 38cm Kai x2 (30 screws minimum each), 3.7cm FlaK x2 (265000 xp on Z3 per gun), 2cm FlaK (265000 xp on Z1). Profit in blueprinting without AAg = 28 screws, -319000xp. Profit in blueprinting with AAg = 28 screws, 476000xp. Recommended not to do this more than twice, since 10 38cm Kai are already sufficient for all FBB in the game optimal with it - the 4 kongou sisters and Bismarck herself.
 * 4) Roma (59500xp) - 381mm Kai x1 (31 screws minimum), 90mm HA (unobtainable otherwise, function ~ 12.7cm HA+AAD, 29 screws minimum, 265000xp). Profit in blueprinting = 205500xp, 44 screws.Recommended for all duplicate Roma drops, but this method is gated by the rarity of Roma drops to begin with.