THANK YOU MUCH FOR THE ADVICE, O WORTHY MASTER OF NIPPON WARSHIPS! YOU ARE CLEARLY ALSO MOST WORTHY MASTER OF USN TORPEDO BLISTERS!

Let me get this straight, I found a 1942 Maryland plan and a wartime photo which shows the blisters should impart a tumblehome to the flanks of the Maryland. Is this correct? Thus, I need to file the sides to get this effect? I am not supposed to give a slope to the horizontal top part of the blister, correct? Just want to be 100% sure before laying file on plastic!

Thanks for the ingenious save, Sensei Kaplan!