With a few modifications, the "cruiser killer" can make 35 knots

I decided to see if I could modify the last design to reach 35 knots. The WL length was increased to 814ft and the beam to 88ft. The new draft is 27 ft. The armament and armour are essentially unchanged. I like the fact that the roll period is a nice and long 16.4 seconds. The belt is still 7in and the deck is still 4in. That provides adequate protection for what this ship would need to worry about. I would hope that is someone sees a problem, they would let me know so that I can correct whatever it might be. This is the Springsharp report:

GB/CB/1921 12in guns, Great Britain Battlecruiser laid down 1921 (Engine 1937)

Displacement:
 28,702 t light; 29,814 t standard; 32,500 t normal; 34,649 t full load

Dimensions: Length overall / water x beam x draught
 816.24 ft / 814.00 ft x 88.00 ft x 27.00 ft (normal load)
 248.79 m / 248.11 m x 26.82 m  x 8.23 m

Armament:
      9 - 12.00" / 305 mm guns (3x3 guns), 864.00lbs / 391.90kg shells, 1921 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 1 raised mount - superfiring
      16 - 4.70" / 119 mm guns (6 mounts), 51.91lbs / 23.55kg shells, 1921 Model
   Quick firing guns in turrets (on barbettes)
   on side, all amidships, 4 raised mounts - superfiring
      6 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1921 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, all amidships, all raised mounts - superfiring
      24 - 1.57" / 40.0 mm guns (6x4 guns), 1.95lbs / 0.89kg shells, 1921 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, evenly spread, all raised mounts
 Weight of broadside 8,965 lbs / 4,066 kg
 Shells per gun, main battery: 90

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 7.00" / 178 mm 530.00 ft / 161.54 m 12.00 ft / 3.66 m
 Ends: Unarmoured
   Main Belt covers 100 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.00" / 25 mm 530.00 ft / 161.54 m 24.00 ft / 7.32 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 9.00" / 229 mm 6.00" / 152 mm  9.00" / 229 mm
 2nd: 3.00" / 76 mm 3.00" / 76 mm  3.00" / 76 mm

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

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 202,688 shp / 151,206 Kw = 35.00 kts
 Range 7,500nm at 18.00 kts
 Bunker at max displacement = 4,835 tons

Complement:
 1,209 - 1,573

Cost:
 £6.955 million / $27.820 million

Distribution of weights at normal displacement:
 Armament: 1,121 tons, 3.4 %
 Armour: 8,677 tons, 26.7 %
    - Belts: 1,873 tons, 5.8 %
    - Torpedo bulkhead: 471 tons, 1.4 %
    - Armament: 2,141 tons, 6.6 %
    - Armour Deck: 3,995 tons, 12.3 %
    - Conning Tower: 197 tons, 0.6 %
 Machinery: 5,618 tons, 17.3 %
 Hull, fittings & equipment: 13,286 tons, 40.9 %
 Fuel, ammunition & stores: 3,798 tons, 11.7 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   46,657 lbs / 21,163 Kg = 54.0 x 12.0 " / 305 mm shells or 5.3 torpedoes
 Stability (Unstable if below 1.00): 1.12
 Metacentric height 5.1 ft / 1.6 m
 Roll period: 16.4 seconds
 Steadiness - As gun platform (Average = 50 %): 51 %
   - Recoil effect (Restricted arc if above 1.00): 0.68
 Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
 Hull has a flush deck
   and transom stern
 Block coefficient: 0.588
 Length to Beam Ratio: 9.25 : 1
 'Natural speed' for length: 32.45 kts
 Power going to wave formation at top speed: 57 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 4.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  32.00 ft / 9.75 m
    - Forecastle (20 %): 26.00 ft / 7.92 m
    - Mid (35 %):  26.00 ft / 7.92 m
    - Quarterdeck (15 %): 26.00 ft / 7.92 m
    - Stern:  26.00 ft / 7.92 m
    - Average freeboard: 26.48 ft / 8.07 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 106.5 %
  - Above water (accommodation/working, high = better): 221.1 %
 Waterplane Area: 53,986 Square feet or 5,015 Square metres
 Displacement factor (Displacement / loading): 113 %
 Structure weight / hull surface area: 169 lbs/sq ft or 823 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.98
  - Longitudinal: 1.19
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent