For my alternate Ger/CB/1905, it didn't work so well

My alternate design study for a German 1905 battlecruiser Ger/CB/1905 C1 didn't work out so well. I had optimistically hoped for 27 knots, but I was only able to reasonably make 26 knots and then by inflating the displacement and dimensions. I don't know what my originally intended protection was, but the weight was 7,284 tons, and my new design has 6,919 tons, so it is pretty close. The armor basis is 10in. To make this work at all, it had to have oil-fired boilers and direct-drive turbines with four shafts (pretty standard). I already have posted a drawing of this ship, although it was some time ago.

Ger/CB/1905 Design Study C1, Germany Battlecruiser laid down 1905

Displacement:
	22,911 t light; 23,853 t standard; 26,040 t normal; 27,789 t full load

Dimensions: Length overall / water x beam x draught
	571.00 ft / 570.00 ft x 94.00 ft x 27.00 ft (normal load)
	174.04 m / 173.74 m x 28.65 m  x 8.23 m

Armament:
      8 - 12.00" / 305 mm guns in single mounts, 864.00lbs / 391.90kg shells, 1905 Model
	  Breech loading guns in turrets (on barbettes)
	  on centreline ends, evenly spread, all raised mounts - superfiring
      12 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1905 Model
	  Quick firing guns in casemate mounts 
	  on side, evenly spread, all raised mounts
	Weight of broadside 8,208 lbs / 3,723 kg
	Shells per gun, main battery: 90

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	10.0" / 254 mm	370.00 ft / 112.78 m	16.00 ft / 4.88 m
	Ends:	Unarmoured
	  Main Belt covers 100 % of normal length
	  Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
		1.50" / 38 mm	370.00 ft / 112.78 m	24.00 ft / 7.32 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	10.0" / 254 mm	6.00" / 152 mm		8.00" / 203 mm
	2nd:	2.00" / 51 mm	2.00" / 51 mm		2.00" / 51 mm

   - Armour deck: 2.00" / 51 mm, Conning tower: 10.00" / 254 mm

Machinery:
	Oil fired boilers, steam turbines, 
	Direct drive, 4 shafts, 76,489 shp / 57,061 Kw = 26.00 kts
	Range 4,200nm at 15.00 kts
	Bunker at max displacement = 3,936 tons

Complement:
	1,024 - 1,332

Cost:
	£2.475 million / $9.900 million

Distribution of weights at normal displacement:
	Armament: 1,026 tons, 3.9 %
	Armour: 6,919 tons, 26.6 %
	   - Belts: 2,613 tons, 10.0 %
	   - Torpedo bulkhead: 493 tons, 1.9 %
	   - Armament: 2,132 tons, 8.2 %
	   - Armour Deck: 1,491 tons, 5.7 %
	   - Conning Tower: 189 tons, 0.7 %
	Machinery: 5,795 tons, 22.3 %
	Hull, fittings & equipment: 9,172 tons, 35.2 %
	Fuel, ammunition & stores: 3,129 tons, 12.0 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  26,833 lbs / 12,171 Kg = 31.1 x 12.0 " / 305 mm shells or 3.6 torpedoes
	Stability (Unstable if below 1.00): 1.13
	Metacentric height 5.7 ft / 1.7 m
	Roll period: 16.5 seconds
	Steadiness	- As gun platform (Average = 50 %): 54 %
			- Recoil effect (Restricted arc if above 1.00): 0.55
	Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
	Hull has a flush deck
	Block coefficient: 0.630
	Length to Beam Ratio: 6.06 : 1
	'Natural speed' for length: 23.87 kts
	Power going to wave formation at top speed: 57 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 0.00 degrees
	Stern overhang: 1.00 ft / 0.30 m
	Freeboard (% = measuring location as a percentage of overall length):
	   - Stem:		26.00 ft / 7.92 m
	   - Forecastle (20 %):	23.00 ft / 7.01 m
	   - Mid (0 %):		23.00 ft / 7.01 m
	   - Quarterdeck (15 %):	23.00 ft / 7.01 m
	   - Stern:		23.00 ft / 7.01 m
	   - Average freeboard:	23.24 ft / 7.08 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 129.2 %
		- Above water (accommodation/working, high = better): 172.4 %
	Waterplane Area: 40,296 Square feet or 3,744 Square metres
	Displacement factor (Displacement / loading): 97 %
	Structure weight / hull surface area: 162 lbs/sq ft or 792 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.95
		- Longitudinal: 1.58
		- Overall: 1.00
	Hull space for machinery, storage, compartmentation is cramped
	Room for accommodation and workspaces is excellent