I haven’t had this problem yet myself, but I can see it’s not far off. I just posted this “Anima Alchemist” idea to suggestions, to explain where all the agents are getting so much distillate from and give us a way to make their little 150cc vials useful. One missing piece of the puzzle was a proper cost for the purification process. Maybe we could spend excess SP to turn regular Distillates into Purified Distillates. Effectively, we’d be paying the Empowerment cost with SP (based on the size of the Distillate) instead of Shards (based on the level of the target item).
Would that be a good use for excess SP, or are people with nothing to spend SP on also running out of things to Empower?