Question on this 2 mod i wanna do but not work

[iicecube]

I wanna tweak some weapons blockrange on them, as the xpath written kinda correct way but somehow not working

 

<configs>

<set xpath="/items/item[@name=meleeStunBaton]/effect_group[@name=meleeStunBaton]/passive_effect[@name=BlockRange]/@value">5.5</set>

</configs>

 

Anything i did wrongly on them?