Saying that ArMatrix extenders increases damage per PEC is like saying that amplifiers significantly increase damage per PEC without accounting for the amplifier's cost in decay and ammo.
ArMatrix extenders decay, adding nothing to damage/PEC.
Armatrix Extenders do decay, but their decay as declared in their item description is ultra-low (aka "Exceptional" Durability,
correct me if i am wrong http://www.entropiawiki.com/Chart.aspx?chart=Durability )
UPDATE/EDIT: The true decay of extenders is not at all that "Exceptional" declared in the item description, see my note at the end of this message.
I crafted some Armatrix P15 extenders, and attached them to various weapons :
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http://www.entropiawiki.com/Info.aspx?chart=Attachment&name=ArMatrix_Extender_P15_(L)
Weapon Attachment:
ArMatrix Extender P15 (L)
Type: Absorber
Weight: 0.1 kg
Source: Crafted
This attachment absorbs a part of the deterioration of the item it is attached to,
deteriorating the Extender instead.
Efficiency: 85%
Attachment Deterioration:
15%
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The result, as expected, regarding
Efficiency improvement, is that the best effect is achieved on high decay weapons, like melee ones (you can try on a TT shortblade, for example); while the worst result, "= almost no effect at all on Efficiency" , is achieved on weapons with insignificant decay (those with "excellent" or "exceptional" durability, like many CDF weapons buyable by daily tokens).
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While, IF you meant with your reply that the "true" decay of a P15-Extender is that "exceptional" = ultra low decay reported in the item description
+ 15% of the decay of the weapon :
oh well ,
IF it's like that then I admit that you are right and I am plain wrong about the effect on the Damage-per-Pec of the weapon; I have just crafted some P15-Extenders and attached them to some weapons, to verify how much the item stats of the weapon changed (like its
Efficiency, for example), but still without measuring the "
true" total decay per shot of a P15-Extender in a hunt )
UPDATE/EDIT: After a small hunt using a TT Shortblade+P15-Extender attached on it,
I have verified that the decay of the Extender is NOT that low/"Exceptional durability", displayed in the item description. So, the TRUE decay of the P15-Extender is about 15% of the decay of the weapon.
So i admit my mistake : the Armatrix Extenders do NOT positively affect the Damage-per-Pec of the weapon.
While it's confirmed that the Armatrix Extenders DO positively affect the Efficiency of the weapon attached, like i had already reported, and
It's confirmed that the best results, Efficiency-wise, are obtained on melee weapons/high decay weapons, while almost no Efficiency modification occurs on very low decay weapons.