Hello forumers. People have been asking me which procedure of upgrading is better. Option 1: "Upgrading all crews from t6 level 1 to level 2" OR Option2: "Upgrading each crew from t6 level 1 to level 4 one at a time" So, let me put forth some computations and comparisons to help understand which option is better. What do we know ? Crew Level: Cost - Stats Level 1: 40b - 51,200cs Level 2: 52b - 76,800cs (+25,600cs) Level 3: 62.4b - 115,200cs (+38,400cs) Level 4: 68.64b - 172,800cs (+57,600cs) Now comparing both the options with respect to the crew, cost and stats. Option 1: T6 Level 1 to level 2 Level 2 t6 costs 52b and gives 26kcs for each upgrade. Ex: 36 (t6level 1 crews) x 52b = 1.872 T (cs of) 36 (t6 level 1) x 26kcs (L2) = 986mcs So that would be: 1.872 T = 986mcs If you upgrade all 36 t6 level 1 to level 2. 986mcs would cost you 1.872 T. Option 2: T6 Level 1 to level 4 T6 Levels 2,3 and 4 cost 52b, 62b and 68b respectively. Hence you need 182b for upgrading one t6 from level 1 to level 4 which gives 120kcs. ex: 10 (t6 L1 crews) x 182b = 1.82 T 10 t6 crews x 120kcs = 1.2mcs That would be: 1.82 T = 1.2mcs So, if you upgrade 10 t6 from level 1 to level 4, one at a time, 1.2mcs would cost you 1.82 T What have we learnt ? Option 2, that is upgrading a crew from level 1 to level 4 one at a time is more efficient. Hope this helps you guys a bit and I want to thank -AbusementPark- for the prices, Nick for his Guide and ofcourse <3EccentricAJ<3 for editing.