This post on FFXIAH has a useful solution that solves all the problems posed:
Quote Originally Posted by Ragnarok.Legandarycyclone
I think an easy fix for the weapons would be to leave the 99 trial as is, but hear me out.

To get to level 99 stage:
20 Umbral Marrow for Relics
10 Mulcibar's Scoria for Mythics
60 Riftdross/Riftcinder for Empyreans

To get the afterglow 99 stage: (these numbers are just random)
300 Arch Dynamis Lord Kills (Relic)
200 Pandemonium Warden Kills (Mythic)
??? for Empyrean (500 Riftcinder/Riftdross?)

I think formatting the trials this way would be much better than needing the same item for the 99 stage AND the afterglow stage. Even if they make it that you have to kill a ridiculous amount of ADL or PW for the afterglow stage, at least it will be more feasible. It would also encourage people who finish their 99 stage to help with more ADL and PW kills rather than just bail when they get their items. So that's my two cents.
http://www.ffxiah.com/forum/topic/28...es/16/#1737924

With this setup, people who have already obtained items for the 99 trial will not be punished, and those people (if there are any) who were going for the glow trial would be able to reclaim their gil. I would recommend 500 Ig-Alima or Botulus Rex kills for the Empyrean glow trial.

This would ensure a long-lasting and steady supply of the items that people need to upgrade to the NQ level 99 relic weapons.