My friend Cliff's 1910 battlecruiser design is pretty amazing

I just entered my friend Cliff's design for the GB/CB/1910 battle cruiser design into Springsharp, and I was pleasantly surprised at just how good it proved to be. The basics are a speed of 33 knots, 4-13.5in BLR and 8-4in QF guns. The belt is 9in and the turrets are 12in on the face and 11in barbettes. The deck is 4in with a 2in A/T bulkhead. I must admit that the information that I had is sketchy. About the most solid thing I have on the design is a drawing with some specs. The armor thicknesses are indicated using the old Jane's Fighting Ship system (different textures indicate different armor thicknesses). Of course, the machinery is 27.28 SHP/ton of machinery. This is the Springsharp report:

GB/CB/1910, Great Britain Battle Cruiser laid down 1910 (Engine 1917)

Displacement:
 30,110 t light; 30,782 t standard; 33,599 t normal; 35,853 t full load

Dimensions: Length overall / water x beam x draught
 780.00 ft / 780.00 ft x 95.00 ft x 30.00 ft (normal load)
 237.74 m / 237.74 m x 28.96 m  x 9.14 m

Armament:
      4 - 13.50" / 343 mm guns (2x2 guns), 1,230.19lbs / 558.00kg shells, 1910 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, all raised mounts
      8 - 4.00" / 102 mm guns (4x2 guns), 32.00lbs / 14.51kg shells, 1910 Model
   Quick firing guns in deck mounts with hoists
   on side, all amidships, all raised mounts - superfiring
 Weight of broadside 5,177 lbs / 2,348 kg
 Shells per gun, main battery: 0

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 9.00" / 229 mm 545.00 ft / 166.12 m 18.00 ft / 5.49 m
 Ends: Unarmoured
   Main Belt covers 107 % of normal length

   - Torpedo Bulkhead:
  2.00" / 51 mm 545.00 ft / 166.12 m 28.00 ft / 8.53 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 12.0" / 305 mm 8.00" / 203 mm  11.0" / 279 mm
 2nd: 2.00" / 51 mm       -         -

   - Armour deck: 4.00" / 102 mm, Conning tower: 9.00" / 229 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 188,139 shp / 140,352 Kw = 33.00 kts
 Range 8,500nm at 15.00 kts
 Bunker at max displacement = 5,071 tons

Complement:
 1,240 - 1,613

Cost:
 £2.563 million / $10.252 million

Distribution of weights at normal displacement:
 Armament: 647 tons, 1.9 %
 Armour: 10,306 tons, 30.7 %
    - Belts: 3,699 tons, 11.0 %
    - Torpedo bulkhead: 1,129 tons, 3.4 %
    - Armament: 1,524 tons, 4.5 %
    - Armour Deck: 3,752 tons, 11.2 %
    - Conning Tower: 202 tons, 0.6 %
 Machinery: 6,897 tons, 20.5 %
 Hull, fittings & equipment: 12,260 tons, 36.5 %
 Fuel, ammunition & stores: 3,489 tons, 10.4 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   43,420 lbs / 19,695 Kg = 35.3 x 13.5 " / 343 mm shells or 6.2 torpedoes
 Stability (Unstable if below 1.00): 1.15
 Metacentric height 6.0 ft / 1.8 m
 Roll period: 16.3 seconds
 Steadiness - As gun platform (Average = 50 %): 66 %
   - Recoil effect (Restricted arc if above 1.00): 0.33
 Seaboat quality  (Average = 1.00): 1.31

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.529
 Length to Beam Ratio: 8.21 : 1
 'Natural speed' for length: 27.93 kts
 Power going to wave formation at top speed: 55 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -2.00 degrees
 Stern overhang: -1.00 ft / -0.30 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  34.00 ft / 10.36 m
    - Forecastle (69 %): 31.00 ft / 9.45 m
    - Mid (69 %):  31.00 ft / 9.45 m (22.00 ft / 6.71 m aft of break)
    - Quarterdeck (15 %): 22.00 ft / 6.71 m
    - Stern:  22.00 ft / 6.71 m
    - Average freeboard: 29.04 ft / 8.85 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 102.3 %
  - Above water (accommodation/working, high = better): 171.4 %
 Waterplane Area: 50,709 Square feet or 4,711 Square metres
 Displacement factor (Displacement / loading): 115 %
 Structure weight / hull surface area: 157 lbs/sq ft or 766 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.47
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily