One obvious modification to the "Ideal Battleship"

I realized that an obvious modification to the "Ideal Battleship" would be to change the main armament layout to the lozenge, with 6 twin turrets. One is on the forecastle, one is on the maindeck, aft, and there are two on each beam, where the single turrets were on Colonel Cuniberti's version. This is the revised Springsharp report:

Colonel Cuniberti's ideal battleship-Modified, Great Britain Battleship laid down 1905 (Engine 1917)

Displacement:
 19,034 t light; 19,954 t standard; 21,200 t normal; 22,197 t full load

Dimensions: Length overall / water x beam x draught
 523.00 ft / 520.00 ft x 82.00 ft x 29.00 ft (normal load)
 159.41 m / 158.50 m x 24.99 m  x 8.84 m

Armament:
      4 - 12.00" / 305 mm guns (2x2 guns), 864.00lbs / 391.90kg shells, 1905 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread
      8 - 12.00" / 305 mm guns (4x2 guns), 864.00lbs / 391.90kg shells, 1905 Model
   Breech loading guns in turrets (on barbettes)
   on side, all amidships
      12 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1905 Model
   Quick firing guns in casemate mounts 
   on side, all amidships
 Weight of broadside 10,530 lbs / 4,776 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 12.0" / 305 mm 315.00 ft / 96.01 m 8.00 ft / 2.44 m
 Ends: 12.0" / 305 mm 205.00 ft / 62.48 m 8.00 ft / 2.44 m
 Upper: 12.0" / 305 mm 175.00 ft / 53.34 m 8.00 ft / 2.44 m
   Main Belt covers 93 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  2.00" / 51 mm 315.00 ft / 96.01 m 29.00 ft / 8.84 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 12.0" / 305 mm 7.00" / 178 mm  12.0" / 305 mm
 2nd: 12.0" / 305 mm 7.00" / 178 mm  12.0" / 305 mm
 3rd: 4.00" / 102 mm 4.00" / 102 mm  4.00" / 102 mm

   - Armour deck: 2.00" / 51 mm, Conning tower: 12.00" / 305 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 49,266 shp / 36,752 Kw = 24.00 kts
 Range 4,800nm at 15.00 kts
 Bunker at max displacement = 2,243 tons

Complement:
 877 - 1,141

Cost:
 £2.025 million / $8.099 million

Distribution of weights at normal displacement:
 Armament: 1,316 tons, 6.2 %
 Armour: 7,972 tons, 37.6 %
    - Belts: 2,960 tons, 14.0 %
    - Torpedo bulkhead: 676 tons, 3.2 %
    - Armament: 2,984 tons, 14.1 %
    - Armour Deck: 1,154 tons, 5.4 %
    - Conning Tower: 198 tons, 0.9 %
 Machinery: 1,806 tons, 8.5 %
 Hull, fittings & equipment: 7,940 tons, 37.5 %
 Fuel, ammunition & stores: 2,166 tons, 10.2 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   25,582 lbs / 11,604 Kg = 29.6 x 12.0 " / 305 mm shells or 4.3 torpedoes
 Stability (Unstable if below 1.00): 1.00
 Metacentric height 3.7 ft / 1.1 m
 Roll period: 17.9 seconds
 Steadiness - As gun platform (Average = 50 %): 50 %
   - Recoil effect (Restricted arc if above 1.00): 0.82
 Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.600
 Length to Beam Ratio: 6.34 : 1
 'Natural speed' for length: 22.80 kts
 Power going to wave formation at top speed: 55 %
 Trim (Max stability = 0, Max steadiness = 100): 47
 Bow angle (Positive = bow angles forward): -2.00 degrees
 Stern overhang: 3.00 ft / 0.91 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  27.00 ft / 8.23 m
    - Forecastle (20 %): 27.00 ft / 8.23 m
    - Mid (20 %):  27.00 ft / 8.23 m (19.00 ft / 5.79 m aft of break)
    - Quarterdeck (15 %): 19.00 ft / 5.79 m
    - Stern:  19.00 ft / 5.79 m
    - Average freeboard: 20.60 ft / 6.28 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 98.0 %
  - Above water (accommodation/working, high = better): 128.7 %
 Waterplane Area: 31,188 Square feet or 2,897 Square metres
 Displacement factor (Displacement / loading): 96 %
 Structure weight / hull surface area: 171 lbs/sq ft or 836 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.93
  - Longitudinal: 1.94
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent