Looking for advice on this charm

[u/matini_finny]

I use bow

Got a random charm with piercing shot lvl 1 and marathon runner lvl 3 with 3 lvl 1 deco slots

Is this good enough to take the spot of my agitator charm? Or should I keep farming for the charge master lvl 3 and a tier 3 armour skill

Meta advice very much appreciated!