Item option isn't changed

[hyunynim]

Hi, I try to change the item option for balancing.
※ Now I use the 'Aion 4.0_4.3 Server files & Client'

This is the sequence what I tried.

1. Open the "AionGameServer\data\static_data\items\item_templates.xml"
2. Find item what I want to change the option.
3. Change the option.
3-1. Add some parameter like this

<add name="PHYSICAL_ACCURACY" value="600" bonus="true"/>
<add name="PHYSICAL_CRITICAL" value="270" bonus="true"/>
<add name="PHYSICAL_ATTACK" value="1000" bonus="true"/>
<add name="MAXHP" value="5000" bonus="true"/>

3-2. Change the value of weapon_stats
before

<weapon_stats hit_count="2" attack_range="1500" magical_accuracy="112" parry="472" physical_accuracy="424" physical_critical="50" attack_speed="1400" max_damage="108" min_damage="88"/>

after

<weapon_stats hit_count="2" attack_range="1500" magical_accuracy="1120" parry="4720" physical_accuracy="4240" physical_critical="500" attack_speed="1400" max_damage="1080" min_damage="880"/>

Now I reboot game server and login to the game.
I find the "3-1" is applied but "3-2" isn't applied.

How can I change the weapon_stats?

What I already tried.
1. Extract "items.pak" and edit values in "client_items_etc.xml". It doesn't work.

Thank you

[MentaL]