I should reread the end of the Shimon arc and parts of the Arco arc, I don't remember those bits very well :/ And I especially don't remember all the stupid Vindice names lol
but ask yourself
would GOKUDERA remember their names?
No 
but I should probably mention the fight in the bio so I can say he did something in that arc? otherwise all I remember is the tandem bicycle and fake decapitation
but I should probably mention the fight in the bio so I can say he did something in that arc? 
xDD
look up.