I am sure I am not the only one that has noticed this discrepancy. The Visions of Abyssea trials between different Empyrean Weapons is very unbalanced.
For those building Gandiva, Gambanteinn & Farsha you need 50 Fistule Discharge. It takes 1 NM (either Guimauve or Bloodguzzler) to be dragged over for Fistule to absorb in order to "pop" him.
For people building Masamune, Armageddon & Calabolg they have to obtain 50 Carabosse Gems. It takes 2 very easy to pop & kill NM's to obtain the items to pop Carabosse.
For those building Twashtar & Ukonvasara you need 50 Glavoid shells. It takes 4 items to pop Glavoid. 2 of the items come of Nm's that require 2 items themselves to be popped. For each of those it is an item that comes off an NM that has to be popped & killed to get the item. This means that you have to kill 6 NM just to be able to pop Glavoid.
For those building Verethragna, Rhongomiant & Redemption you need 50 Chloris Buds. It takes 4 items to pop Chloris. 3 of those items come off Nm's that need 2-3 items themselves to be popped. 1 item for Treble Nocules & Hedetet & 2 items for Ophanim require an NM be popped & killed to get them. This means you have to kill 8 NM just to be able to pop Chloris.
I think there needs to be some adjustments made to balance these trials out a bit. I hold way more respect to those who build weapons that require Glavoid or Chloris pops due to the insane amount of time needed to build pop sets. Granted all of the Key Items needed to pop those 2 NM CAN come of of Gold Pyxis in Abyssea-Tahrongi, but the actually load rate of the KI in those chests is sporadic & low. The amount of time to farm the gold chests would be equal to killing all the NM needed to build the pops. The trials involving Scars & Heroes areas are more balanced for the additional trials. I just think the Visions area trials need to be balanced out some how. Lower the required items to pop the Nm's, increase the shell and bud drops per kill or lower the amount of items required for the trial involving Glavoid & Chloris? Something needs to be balanced.