Couple alchemy related things:
First, to go into some more detail about the formula issue that I mentioned last week.
The cases would greatly benefit from a change similar to the caches. I don't even attempt to open cases since I know there is about a 99.9% chance I won't get what I need. And half the stuff in them is more or less worthless since it's something like a formula for an old EIs that will cost 5 times as much to craft as just out right buy. Same for some of the RIG items in there. I understand you need some formulas in there that people can use to level up with. But some of them are just so expensive to craft it's pointless to even bother.
Changing them like the caches would greatly help in reducing the crazy odds you have in pulling something you need. Heck, you could even make it so there is a quest case that lets you choose which quest you want. That way if someone is lucky enough to open a case and actually get a quest they are able to choose which one the want to do as opposed to being stuck with the one they randomly got.
Secondly, I calculated how many different colored caches it would take to finish the demonic quest:
Philosopher's Cache: Diamond x221
Philosopher's Cache: Emerald x213
Philosopher's Cache: Amethyst x309
Philosopher's Cache: Aquamarine x256
Philosopher's Cache: Topaz x319
Philosopher's Cache: Gold x271
Philosopher's Cache: Garnet x289
Philosopher's Cache: Platinum x39
Philosopher's Cache: Ruby x360
Philosopher's Cache: Sapphire x274
Not sure what this will look like for any of the other quest since none of them are near being completed yet as far as I know, but I can't imagine it being too different from the demonic.
In my opinion it wouldn't hurt to make the gold cache a little more common. From the hundreds of caches I've opened I've found them to be just a little less rare than the platinum bags, a bag that isn't needed nearly as much in things. Especially the quest.