well, this suggestion it's very simple

some days ago i was a little bored and i wanted to play with some DDs just for the lolz and i realized that even
puttin only 2  high lvl gunners made my DD almost full, so i came up with the idea that NavyField should give the
option (like a button or something) that makes a salior stop gaining xp every battle, so for those who enjoy playing
with DDs and CL or maybe CA have the chance to lvl a dedicated crew for those ships and freeze them before they
rearch higher lvls and weight too much for the ship you wanna play

i know that you can have high lvl sailors and reduce their weight by taking rookies out of them, but the penalty in the
hability its big, besides if you already VE them (and this is a must to play well with high lvl ships) you can't do this
without a cost.

for the ones who don't like this idea you can still take rookies from sailors, this is just an extra option