My 1905 British fast battleship

Instead of building 21 knot battleships and 25 knot armoured cruisers, why not just build 24 knot fast battleships? That is the premise of my GB/BB/1905 design that has 8-12in/45 and 16-4in QF guns and a 11in belt. "Just for fun," I have a photograph of one, as well! This is the Springsharp report:

GB/BB/1905, Great Britain Battleship laid down 1905 (Engine 1909)

Displacement:
 19,173 t light; 20,005 t standard; 22,462 t normal; 24,429 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (613.00 ft / 605.00 ft) x 84.00 ft x (26.00 / 27.86 ft)
 (186.84 m / 184.40 m) x 25.60 m  x (7.92 / 8.49 m)

Armament:
      8 - 12.00" / 305 mm 45.0 cal guns - 849.99lbs / 385.55kg shells, 90 per gun
   Breech loading guns in turret on barbette mounts, 1905 Model
   4 x Twin mounts on centreline ends, evenly spread
  2 raised mounts - superfiring
      16 - 4.00" / 102 mm 45.0 cal guns - 32.00lbs / 14.51kg shells, 150 per gun
   Quick firing guns in deck and hoist mounts, 1905 Model
   16 x Single mounts on sides, evenly spread
  8 raised mounts
      Weight of broadside 7,312 lbs / 3,317 kg

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 11.0" / 279 mm 400.00 ft / 121.92 m 9.00 ft / 2.74 m
 Ends: 4.00" / 102 mm 180.00 ft / 54.86 m 12.00 ft / 3.66 m
   25.00 ft / 7.62 m Unarmoured ends
 Upper: 8.00" / 203 mm 400.00 ft / 121.92 m 8.00 ft / 2.44 m
   Main Belt covers 102 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
  1.50" / 38 mm 400.00 ft / 121.92 m 27.00 ft / 8.23 m
 Beam between torpedo bulkheads 58.00 ft / 17.68 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 11.0" / 279 mm 8.00" / 203 mm  11.0" / 279 mm
 2nd: 4.00" / 102 mm 3.00" / 76 mm  4.00" / 102 mm

   - Armoured deck - multiple decks:
 For and Aft decks: 2.00" / 51 mm
 Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 11.00" / 279 mm, Aft 8.00" / 203 mm

Machinery:
 Coal fired boilers, steam turbines, 
 Direct drive, 4 shafts, 47,823 shp / 35,676 Kw = 24.00 kts
 Range 4,800nm at 15.00 kts
 Bunker at max displacement = 4,424 tons (100% coal)

Complement:
 916 - 1,192

Cost:
 £1.706 million / $6.826 million

Distribution of weights at normal displacement:
 Armament: 1,382 tons, 6.2 %
    - Guns: 1,382 tons, 6.2 %
 Armour: 7,774 tons, 34.6 %
    - Belts: 3,108 tons, 13.8 %
    - Torpedo bulkhead: 599 tons, 2.7 %
    - Armament: 2,362 tons, 10.5 %
    - Armour Deck: 1,378 tons, 6.1 %
    - Conning Towers: 326 tons, 1.5 %
 Machinery: 2,391 tons, 10.6 %
 Hull, fittings & equipment: 7,626 tons, 33.9 %
 Fuel, ammunition & stores: 3,290 tons, 14.6 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   39,707 lbs / 18,011 Kg = 46.0 x 12.0 " / 305 mm shells or 6.4 torpedoes
 Stability (Unstable if below 1.00): 1.06
 Metacentric height 4.3 ft / 1.3 m
 Roll period: 16.9 seconds
 Steadiness - As gun platform (Average = 50 %): 76 %
   - Recoil effect (Restricted arc if above 1.00): 0.90
 Seaboat quality  (Average = 1.00): 1.51

Hull form characteristics:
 Hull has low quarterdeck ,
   a ram bow and a cruiser stern
 Block coefficient (normal/deep): 0.595 / 0.604
 Length to Beam Ratio: 7.20 : 1
 'Natural speed' for length: 24.60 kts
 Power going to wave formation at top speed: 48 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -3.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 20.00 %,  27.00 ft / 8.23 m,  25.00 ft / 7.62 m
    - Forward deck: 30.00 %,  25.00 ft / 7.62 m,  25.00 ft / 7.62 m
    - Aft deck: 22.00 %,  25.00 ft / 7.62 m,  25.00 ft / 7.62 m
    - Quarter deck: 28.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
    - Average freeboard:  22.92 ft / 6.99 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 91.5 %
  - Above water (accommodation/working, high = better): 192.3 %
 Waterplane Area: 36,996 Square feet or 3,437 Square metres
 Displacement factor (Displacement / loading): 117 %
 Structure weight / hull surface area: 161 lbs/sq ft or 788 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.95
  - Longitudinal: 1.57
  - Overall: 1.00
 Adequate machinery, storage, compartmentation space
 Excellent accommodation and workspace room
 Ship has slow, easy roll, a good, steady gun platform
 Excellent seaboat, comfortable, can fire her guns in the heaviest weather