some uses the t slot room for their repair to level, I too didn't use aa from richie to alsace grind cause i use to t slot to level 2 rep on t slot and 1 rep on support and 1 scout and rest engies, but now i use put aa just for fun

best aa set up is the 5.1 quad and dual combination

Many people are just lazy to use AA, or doesn;'t even have a clue how to use AA.

Reason's why people run their Richelieu (Or any BB that CAN carry good AA for that matter) without AA.

Feel they need the Reps to compete with AW UK Ships.

Leveling pilots/other nation sailors.

Feel like blaming others for being bombed/fightercamped/scouted.

Didn't level enough crew (Applies to a friend of ours that level to Amagi but didn't have enough crew at the time to use it)

Too lazy to use AA/Don't feel they need it.

Makes me sad that BB's that can carry good AA but choose not to (BB456 mostly) AA can be a distraction if you're way too focused on it like me,but you won't last long being fired at from at least 5 BB's when rushing because you didn't blind them.

I am one who is too lazy and does not have a clue how to use AA and I do just fine in my Mandel and Richy, thank you very much.

Btw, it's called personal preference, not necessarily one that is lazy and/or clueless.
I should not be made to conform to "your" style of play by being labeled lazy or clueless, but to my own playstyle. ;-P

I did not even think about leveling repair in the T slots, I forgot they work there.

I particularly like to use AA in boats besides giving extra credit is a lot more fun to play :)
if you do not like AA can be exchanged for HH

same her im too lazy for MN AA idk the angle forMN bb4 ...anyone can give me guide for AA and what type of AA gunns