after cap stat increase more Dex or Str?

Char Bow+Arrow, i mean after 255 dex, 247 str... more dex?
and better increase 1 more point str? to 248, as i know it increases cdmg but idk if need binary number
thanks in advance

 

If you feel your base damage sucks and you dont need cdmg as much, do DEX.
If you feel your base damage is fine and you'd rather focus on your critical hits, go STR.
There is no wrong answer, and VIT/CRT are also options if you want to, but for full damage id do STR=DEX

 

5 str = +1 critical damage

the difference between 5 str and 5 dex is 1 crit dmg vs 10atk, 5 hit and 15 cspd.
if you only care about damage, go for str. otherwise it's dex.