After I learned fleet locking was going to be a thing in normal mode, I spent 24 hours over the weekend training ships without FAVORITISM. Working primarily in 4-3 (the Sri Lanka / Ceylon stage, appropriately enough), I got 20 shipgirls up to "third string".
Starters (Level 70+): 11 ships (2 CVL, 2 CV, 2 DD, 2 FBB, 2 CAV, 1 CL)
Bench (Level 50-69): 17 ships (1 CVL, 4 DD, 2 FBB, 1 BBV, 1 CAV, 3 CL, 5 SS)
Third String (Level 30-49): 20 ships (2 CVL, 2 CV, 6DD, 2BB, 1BBV, 2CL, 2CLT, 2CA, 1SS)
The third string includes Nagato, Mutsu, Kaga, Soryu, Kitakami, and Ooi - ships that are known to be strong, but who I've never bothered to train in the past.
I also managed to do this training while keeping my resources up (63k fuel/ammo/steel; 55k bauxite; 666 buckets).
Of course, one weekend can't undo 4 months of FAVORITISM. I don't have strong CAs anymore now that Tone and Chikuma have converted to CAVs. The two CAs in the third string (Maya and Furutaka) might not be enough. And there's a 30-level gap between my starter CVs and their backups.
Since I was in 4-3 anyway, I decided to pay a visit to the boss with Ryujo and my third string CAs, getting the Futon Furniture. Now I have a bed I can share with RJ. (LOL)
E-1 and E-2 should be doable on normal if they have the same difficulty as Winter 2015's E-1 and E-2, which I cleared on normal. My hope is that the third string is able to take on E-3 on normal. The E-3 ships will then be locked, but I'll still have the starters and the bench to take on the combined fleet map of E-4, also on normal.
Then, with the main part of the event cleared on normal, I'll chicken out and do the extra operations on easy mode. That way I can use my locked ships from E-3 and E-4 in the extra operations without restriction.
So that's the plan. The time has come to see how strong my fleet has truly become.