===== in term of true ability =====
11 rep 11 fighter 150 vet 120 level = 3.42 true ability
9 rep 13 fighter 150 vet 120 level = 3.73 true ability
delaying pilot doesn't make a huge difference,however, need 10 more vet for same result.
===== in term of SD =====
8 pilot, operator & gunner give you less than 500 SD.
Its less than 500SD when the BO,gunner are elite rep & delayed to 120 level.
getting SD seems a problem.
===== in term of the last support slot =====
If you put restorer, you lack repair and lack sonar.
If you put a sonar, you lack restore and repair.
If you put an elite repair, still won't get good SD (less than 700 in total, you are IJN!)
11/11 repair man still less than 800SD
===== c.onclusion =====
so, if you can find good rep/res pilot, use them