Just the right kind of fucked up luck man.
It took me going through the event to get my Kongou and Kirishima (I still don't have Haruna).
I got Yahagi on like my 3rd LSC attempt with the base recipe and 20 devmats.
Then again I also got Nagato with the base normal BB recipe...after about 3 Fusou in a row and 2 Ise.
And yet all the CVs I have except Akagi and Kaga (I got her for clearing 3-2) are from Spring E2 drops.
I was rather happy when I got Yahagi too, cause I remembered hearing how she's considered to be almost as hard to get as Yamato, and yet she just fell into my lap after Noshiro and Maruyu.