At cut at the "Super Fast" battlecruiser

I don't know if this qualifies as "Super Fast", but I have a Springsharp design for the "Super Fast" battlecruiser that can make 36 knots. The machinery is 41.8 SHP/ton. This is trying to be faithful to the original sketch design from 18 July 1973. I took the liberty of increasing the draft from 29.7ft to 30ft, and the Standard displacement is a bit more than the original 32,000 tons. I had hoped for, can you believe it, 52 knots! I know now that was based on erroneous extrapolation from speed and power curves. This is the Springsharp report:

GB/CB/1918 "Super Fast", Great Britain Battlecruiser laid down 1918 (Engine 1950)

Displacement:
 31,782 t light; 32,930 t standard; 34,500 t normal; 35,756 t full load

Dimensions: Length overall / water x beam x draught
 801.29 ft / 800.00 ft x 85.00 ft x 30.00 ft (normal load)
 244.23 m / 243.84 m x 25.91 m  x 9.14 m

Armament:
      4 - 17.00" / 432 mm guns (2x2 guns), 2,456.50lbs / 1,114.25kg shells, 1918 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread
      4 - 0.00" / 0.0 mm guns (2x2 guns), 0.00lbs / 0.00kg shells, 1918 Model
   Quick firing guns in deck mounts with hoists
   on centreline ends, evenly spread, all raised mounts
      12 - 4.00" / 102 mm guns (6x2 guns), 32.00lbs / 14.51kg shells, 1918 Model
   Quick firing guns in deck mounts with hoists
   on side, evenly spread, all raised mounts
 Weight of broadside 10,210 lbs / 4,631 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 8.00" / 203 mm 430.00 ft / 131.06 m 9.00 ft / 2.74 m
 Ends: Unarmoured
 Upper: 5.00" / 127 mm 230.00 ft / 70.10 m 8.00 ft / 2.44 m
   Main Belt covers 83 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.00" / 25 mm 430.00 ft / 131.06 m 29.00 ft / 8.84 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: 3.00" / 76 mm 3.00" / 76 mm  3.00" / 76 mm
 3rd: 3.00" / 76 mm 3.00" / 76 mm  3.00" / 76 mm

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

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 271,404 shp / 202,467 Kw = 36.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 2,826 tons

Complement:
 1,265 - 1,645

Cost:
 £6.187 million / $24.747 million

Distribution of weights at normal displacement:
 Armament: 1,276 tons, 3.7 %
 Armour: 5,598 tons, 16.2 %
    - Belts: 1,802 tons, 5.2 %
    - Torpedo bulkhead: 461 tons, 1.3 %
    - Armament: 1,326 tons, 3.8 %
    - Armour Deck: 1,826 tons, 5.3 %
    - Conning Tower: 183 tons, 0.5 %
 Machinery: 6,493 tons, 18.8 %
 Hull, fittings & equipment: 18,415 tons, 53.4 %
 Fuel, ammunition & stores: 2,718 tons, 7.9 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   43,152 lbs / 19,573 Kg = 17.6 x 17.0 " / 432 mm shells or 4.5 torpedoes
 Stability (Unstable if below 1.00): 1.07
 Metacentric height 4.5 ft / 1.4 m
 Roll period: 16.8 seconds
 Steadiness - As gun platform (Average = 50 %): 50 %
   - Recoil effect (Restricted arc if above 1.00): 0.85
 Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.592
 Length to Beam Ratio: 9.41 : 1
 'Natural speed' for length: 28.28 kts
 Power going to wave formation at top speed: 59 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 2.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  37.00 ft / 11.28 m
    - Forecastle (20 %): 33.00 ft / 10.06 m
    - Mid (44 %):  33.00 ft / 10.06 m (25.00 ft / 7.62 m aft of break)
    - Quarterdeck (15 %): 25.00 ft / 7.62 m
    - Stern:  25.00 ft / 7.62 m
    - Average freeboard: 28.84 ft / 8.79 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 116.1 %
  - Above water (accommodation/working, high = better): 207.8 %
 Waterplane Area: 49,359 Square feet or 4,586 Square metres
 Displacement factor (Displacement / loading): 120 %
 Structure weight / hull surface area: 233 lbs/sq ft or 1,135 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 1.30
  - Longitudinal: 2.11
  - Overall: 1.36
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent