A more typical GB/CA/1905 "Unapproachable" design

I decided that I should try an "Unapproachable" design with coal-fired boilers and reciprocating engines. I made the concession that the engines are lighter weight. It actuall did not work too badly. I don't like what I have, in the sense that it is too much like a belted cruiser. The armament and protection is still unchanged: 16-9.2in BLR, 12-4in QF, and a 6in armour basis with a 2 in deck. I did reduce the range, slightly, to keep the size of the ship down. I see an error in what I did yesterday, that I need to correct, and will. This is the Springsharp report:

GB/CA/1905 Coal Fired, Reciprocating Engines, Great Britain Armoured Cruiser laid down 1905 (Engine 1911)

Displacement:
    16,323 t light; 17,108 t standard; 19,200 t normal; 20,874 t full load

Dimensions: Length overall / water x beam x draught
    556.00 ft / 556.00 ft x 75.00 ft x 26.50 ft (normal load)
    169.47 m / 169.47 m x 22.86 m  x 8.08 m

Armament:
      4 - 9.20" / 234 mm guns (2x2 guns), 389.34lbs / 176.60kg shells, 1905 Model
      Breech loading guns in turrets (on barbettes)
      on centreline ends, evenly spread
      12 - 9.20" / 234 mm guns (4x3 guns), 389.34lbs / 176.60kg shells, 1905 Model
      Breech loading guns in turrets (on barbettes)
      on side, all amidships
      12 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1905 Model
      Quick firing guns in casemate mounts
      on side, evenly spread, all raised mounts
    Weight of broadside 6,614 lbs / 3,000 kg
    Shells per gun, main battery: 100

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    6.00" / 152 mm    380.00 ft / 115.82 m    12.00 ft / 3.66 m
    Ends:    4.00" / 102 mm    176.00 ft / 53.64 m    12.00 ft / 3.66 m
      Main Belt covers 105 % of normal length
      Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
        1.00" / 25 mm    380.00 ft / 115.82 m    26.00 ft / 7.92 m

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    8.00" / 203 mm    5.00" / 127 mm        8.00" / 203 mm
    2nd:    8.00" / 203 mm    5.00" / 127 mm        8.00" / 203 mm

   - Armour deck: 2.00" / 51 mm, Conning tower: 8.00" / 203 mm

Machinery:
    Coal fired boilers, complex reciprocating steam engines,
    Direct drive, 4 shafts, 56,604 ihp / 42,227 Kw = 25.50 kts
    Range 4,800nm at 15.00 kts
    Bunker at max displacement = 3,766 tons (100% coal)

Complement:
    815 - 1,060

Cost:
    £1.792 million / $7.169 million

Distribution of weights at normal displacement:
    Armament: 827 tons, 4.3 %
    Armour: 4,801 tons, 25.0 %
       - Belts: 1,480 tons, 7.7 %
       - Torpedo bulkhead: 366 tons, 1.9 %
       - Armament: 1,695 tons, 8.8 %
       - Armour Deck: 1,137 tons, 5.9 %
       - Conning Tower: 124 tons, 0.6 %
    Machinery: 3,761 tons, 19.6 %
    Hull, fittings & equipment: 6,934 tons, 36.1 %
    Fuel, ammunition & stores: 2,877 tons, 15.0 %
    Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      21,471 lbs / 9,739 Kg = 55.1 x 9.2 " / 234 mm shells or 2.8 torpedoes
    Stability (Unstable if below 1.00): 1.11
    Metacentric height 4.0 ft / 1.2 m
    Roll period: 15.8 seconds
    Steadiness    - As gun platform (Average = 50 %): 62 %
            - Recoil effect (Restricted arc if above 1.00): 0.82
    Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
    Hull has rise forward of midbreak
    Block coefficient: 0.608
    Length to Beam Ratio: 7.41 : 1
    'Natural speed' for length: 23.58 kts
    Power going to wave formation at top speed: 54 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): -2.00 degrees
    Stern overhang: -2.00 ft / -0.61 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        28.00 ft / 8.53 m
       - Forecastle (20 %):    25.00 ft / 7.62 m
       - Mid (67 %):        25.00 ft / 7.62 m (17.00 ft / 5.18 m aft of break)
       - Quarterdeck (15 %):    17.00 ft / 5.18 m
       - Stern:        17.00 ft / 5.18 m
       - Average freeboard:    22.60 ft / 6.89 m

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 131.2 %
        - Above water (accommodation/working, high = better): 163.6 %
    Waterplane Area: 30,731 Square feet or 2,855 Square metres
    Displacement factor (Displacement / loading): 101 %
    Structure weight / hull surface area: 146 lbs/sq ft or 714 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0.94
        - Longitudinal: 1.72
        - Overall: 1.00
    Hull space for machinery, storage, compartmentation is cramped
    Room for accommodation and workspaces is excellent
    Good seaboat, rides out heavy weather easily