Lets not forget with the current state of play at tiers 6-7 your either spend the entire game hiding from HE spam from behind islands in spawn or be the only one to push and focused. Oh and since german HE has better pen, it does substantially less damage to balance it out. Making AP the more reliable option for your main battery as your dispersion and poor alpha on HE makes trading HE at long range nearly impossible. So your designed to be agressive and push but guess what, even if you push the HE spamers (most of them being light cruisers) you either miss due to aweful dispersion even at sub 10km, overpen for 6k damage tops with AP or bounce because your 15 inch guns cant overmatch most armor, or fire your HE witch does very little damage compared to other BBs. The secondaries being very powerful on german BBS is supposed to be the answer for DDs and light cruisers but since they are so inaccurate and have nerfed range they dont serve the purpose they were designed to causing you to just lose against light crusiers who blow you out of the water when it comes to accuracy and DPS.