Hi SS,
I’m happy how this game went going.
While I was looking at 2 hits BB and adding 3 hits BB row, I realized I entered a wrong number into your BB values.
Battleships
A9
D9
M2
C15 2 hits
The real number from Enigma-Vann should be: 1.26
K54 (this is the row number, it may be different on your sheet) cell should be written:
*=SOMME(144*C54/12/B54^2)2,62
M54 cell should be written:
*=SOMME(144*E54/12/B54^2)2,62
Since Cruiser is 1.04 and Sub is (1.22), you may find that BB is a bit high at 1.26 compared to best Naval aircraft (0.84) or even a full Carrier (0.85).
Cruisers
A7
D7
M3
C9
Strength: 1.04
So, rising BB to 16 IPCs will make it just a bit higher at 1.11
Battleships
A9
D9
M2
C16 2 hits
Strength would be: 1.11
That way, you keep a small increasing slope: DD (1.00), CA (1.04), BB (1.11)
But still, you may found that 2 hits BB have to be powerful because Cruiser is M3.
As usual, it is up to you.
Have fun tomorrow.