Board Thread:Questions and Answers/@comment-11700680-20170603101112/@comment-26366865-20170603111324

See the Luck-modernisation tab here:

http://kancolle.wikia.com/wiki/User_blog:Hayashi_H/Advanced_Equipment_Guide

Even though it’s an old guide, the reasoning behind the list is still sound. However, since it’s old, remember to keep two things in mind:

1- Back then, the Cut-In trigger formula had different values for each type of Cut-In, whereas the accepted formula today has a global 50 luck softcap. Therefore, there’s not much point going above that - adjust the numbers accordingly, and remove the ships that already have 50+ luck.

2- A few ships were worthwhile ships have been introduced since - I’d personally put Kasumi between Myoukou and Shimakaze.