hud_combattext_batching_window

0.01 below reload of the weapon you are using is my personal preference. melees don’t matter, here are the stats from the TF2 wiki YouTube demonstration videos.
for scout:
bind 1 “slot1; hud_combattext_batching_window 0.75”
bind 2 “slot2; hud_combattext_batching_window 1.24”
Soldier:
bind 1 “slot1; hud_combattext_batching_window 0.79”
bind 2 “slot2; hud_combattext_batching_window 0.99”
pyro:
bind 1 “slot1; hud_combattext_batching_window 2.0”
bind 2 “slot2; hud_combattext_batching_window 0.99”
demoman:
bind 1 “slot1; hud_combattext_batching_window 1.23”
bind 2 “slot2; hud_combattext_batching_window 1.07”
heavy:
bind 1 “slot1; hud_combattext_batching_window 2.0”
bind 2 “slot2; hud_combattext_batching_window 0.99”
engineer:
bind 1 “slot1; hud_combattext_batching_window 0.99”
bind 2 “slot2; hud_combattext_batching_window 1.35”
medic:
bind 1 “slot1; hud_combattext_batching_window 1.59”
bind 2 “slot2; hud_combattext_batching_healing 1”
sniper:
no need for primary
bind 2 “slot2; hud_combattext_batching_window 1.09”
spy:
bind 1 “slot 1; hud_combattext_batching_window 1.15”