theres like little to no reason to grind the german naval tree same line of reasoning for the japanese naval tree they got nothing to offer many naval trees are made completely invalid by the existance of the american and russian naval trees heres a jist as to why
TOP TIER
GERMAN
bismarck
the barbette fire mechanic makes it basically useless agianst other high tier BBs
and the fact you can just buy the gniesnau 79.99 and just be better further invalidates its existance
also german BBs are the only ones to be one tapped easily from fire mechanic at top tier due to magazine placement as if you try to do it to USS iowa it hits the shell room and she shrugs it off
also the entire naval community hates the german tree due to the scarnhorst being bugged on release which is gaijins fault not germany now the entire tree suffers
JAPANESE
yamato
can be one tapped ammo racked by Uss texas at 6.7 which is really sad honestly for biggest BB ingame no where near as durable as IRL some are 7.7s are decent but thats it
ITALY
Rome
lacks a decent reload or armor with high pen and low filler not to mention rest of tree is buns
literally zero reason to grind any of these countries
the best way to fix naval right now would be decompresing top BR a max of 9.0 and 9.3
so if they do rework it they have room to move around based on there abilitys
JAPAN fixes
the yamato would likely remain at 8.7 with as its basically is nothing more than a glass cannon
ITAKY fixes
rework br for some of there BBs as there not insane and there guns are rather weak
GERMAN fixes
something to counter balance the one tap magazine of the fire damage to barbettes as germany by suffers the most from it whether they add magazine flooding or something which can counter balance the death sentance of magazine fires and it would be moved to 8.7 cause without the fire mechanic its a rather balanced BB performance wise
IOWA and SOYUZ would be raised to 9.0-9.3 as they are a whole class of there own