Thread:Jenesis33/@comment-26813804-20150725012808/@comment-26289480-20150725060727

Alright I iwll try to explain this to you. Using as much stats and logic as possible.

1) First thing first, we have to understand why BB are setup the way they are. (usually 2 main cannon + plane + 91 Ap shell or radar). This because int he game the way day battle works is to trigger double attack or cut in attack.

http://imgur.com/a/YN68l#2IDlVEi

This is cut from Wiki, so by using common setup you have either 120X 2 (which does 240% damage if triggered) or 150% damage.

However if you use what you been suggesting, Red+90+plane+91 ap shell. Because 90 mm is a yelllow cannon (and a High angle green cannon), you will do cut in (AP shell) which is either a 110% cut in or 130% cut in. Both are far weaker comparing to the common setup.

Further more when you do Type 3 shell (or 91 Ap shell), main cannon, radar 90 mm. you loss the plane. which means you can no longer do artierlly spotting attack. This means you are stuck with a 100% damage attack.

So thats why it is not suggest to use 90mm on any BB (regardless fast or slow, doesnt matter)

2) Now lets talk about AA CI.  I will be straight forward, AACI is pretty crappy right now. It doesnt do much. Yep, you heard me right, it doesnt do much. Why? I will show  you some stats:

http://i.imgur.com/uAiu9CO.png

Here you go, this is from Japanese Wiki. Ignoring Maya and Akizuiki, we can see the most damage you can do is with BB setup as follow -> main cannon, type 3 shell, air-radar, Fire director. Even with this setup you can only shoot down 6 planes.

Now this doesnt look that bad on paper, but you have to think what you up against. For example 4-5,

http://kancolle.wikia.com/wiki/Standard_Carrier_Wo-Class

This is a verry common foe you up against. So even with AA CI triggerd you can only shot down 6 palnes per slot. and Wo generally have more than 30 planes per slot. So yeah it helps but not to a huge degree. Speically it is rare you will setup a BB like that. (and AA CI has to trigger in the first place)

http://kancolle.wikia.com/wiki/Harbour_Princess

This is the boss at 4-5, yes you see correctly, she has 180 plane per slot.. And shooting down 6 is really not going to save your day.

So AA CI is something you bring along if you can, but not something you have to. Thats why it is best for DD to bring AA CI (speically Akizuki) Because DD usual setup is 2X main cannon + radar. And By using Akizuki gun (10CM HA+FD) + a normal 10CM HA + air radar.

DD doesnt atucaly have to give up anything while still able to brring AA CI.

While the way you setup, you have to give up on a BB's damage output to bring AACI. That is why it is a bad idea to do so.

3) Maya. She is quite speical, to be honest it is generally not worth to scrafice her double attack in day time to bring AA CI on her. But she has the best AA CI (able to shot down 8 planes per slot when triggered). So in some map (namely 3-5 north route), it might be ok to scrafice her damage to bring AA CI .Still it is not a must, it is even arguabal if it is needed.

4)Now lets talk about your spring event. You use 1 CV in Surface fleet, this is not the best idea for E6 Spring, Bec you cant get AS in pre-boss node with 1 CV. So general idea is 2 CVL +4BB. To be honest, that event was rather easy, And it is clearly you smahed through boss. Doesnt matter waht you bring, you proababy will win. I can pormise you it is not because 90 mm saved  you day. In fact it probabaly weakend you. (see my point 1+2 above)

5)Finally i want to talk abotu 4-5. First, 4-5 grinding stage it is best to go middle with 2CV1BB3CA(V). You can even use a CLT instead of CA(V). So becomes 2CV1BB2CA(V)1CLT. Reason is boss is not that hard (before final form) and CA fleet will eat less resources, plus point J is much easier than node H.

Second, it is a terriable idea to bring a lvl 48 Taihou to 4-5, Taihou naturally has weak evasion. Been such low level, the chance she will get damaged is extremly high. I dont know if you got send home bec of her a lot or not. But it was a very risky choice.

Third, if it is final kill, it is recommended to use 4BB1SS1CV forr south route. SS will be able to tank the boss and provide a much safer fight for your BB to deal the damage to kill the boss.

Of course bring dmg control on SS. (it is not likely those will be used, boss can't really damage SS. So unless you get first point red on SS(which you should retreat), you are fine)

Generally speaking the problem with 4-5 is having enough damage to kill the boss. Bring a AACI is not really needed.

6) Lets talk about those damage. First picutre you showed a night combat. dealing 100+ damage in night battle to a enemy crusier? with night recon is not really hard. Any BB should be able to 1 shot that (proabaly can do it with no equipment) so it doesnt mean much.

2nd picture is pretty good, you manage to get lucky and killed an enemy battleship. (critical damage). This will not happen 100% of the time.

Thrid picture is where you see the problem, if you had a normal setup BB (double cannon, 91 + plane) You will kill that ship for sure. Now bec of your 90 mm setup that enemy ship lives, and will take another shot form your ship to kill it. in 4-5 every shot is so cruical, you really cant afford to waste them.

4th picutre shows the even bigger problem. if your mutsu had double red (improving FP) and type 3 shell, she might be able to just kill the boss straight away. I mean in this case it didnt matter, bec it was 5v1 (5BB too). but in some other case it might come back and haunt you.

7) Conclusion:

It is a good idea to equip 90mm on BB. However it is trading off way too much damage output for very limited gain. While DD can bring AA CI for free, trading off nothing in the process. That is why you should not do it.

Answer to your quesiton, I dont have Akizuiki or Maya, my answer is then dont worry about it. AA CI is no where close to must have in this game.

I hope all of these make sense, I am sorry I can't support you on this one. But i am jsut stating the facts here.