Talk:Summer 2016 Event/@comment-28929444-20160823091330/@comment-24930367-20160823101755

At least in normal sortie (single fleet), formations do affect evasive capabilities of your ships as well as how accurate they will be.

Combined fleet lacks data on evasion mainly because most of the time, there is not enough time to experiment (plus it's rather hard to test, I think).

But within types of Combined Fleet, evasion and accuracy of either main or escort do differ, as said here.