There is another part of this equation that not many want to talk about, or at least it seems mentioned seldom, that is the part that has to turn and stop the nose, that is the elevator/stab. and its moment. A very powerful large stab and elevator will do a great job of stopping and turning the mass up front, a small area stab/elev. will NOT do nearly as well. Plus remember balance in the size of the stab/elev , in relationship to what it needs to move is very important. Too little and you have to run a tail heavy ship, or suffer turn, and stability in the turn and stop is also due to the proper size.
I personally do not want anything over 10 or so inches at the nose on 60 sized ships, and 9 inches or so on 35 sized ones. I have flown 60 size ships with near 10 inch nose moments and have 16.5 (17, 17.5, 18, 18.5, 19, 20, 21 )to 22 inch tail moments (the way modelers measure nose and tail) you can make them all work, but they work best with percentages varied along with aspect ratio weight etc..
NOTHING is simple !!
Randy