You can`t fix it all by increasing or decreasing drop/turn in ratios/RNG... SE.
Sometimes you really need to stop, re-think what you have done, and move away from bad ideas. Is not the red scrip reward ratio what killed crafting (status after hotfix: still very very dead). Getting 25 or 50 red scrips doesn`t make a diference, maybe in time, but again, for the casual, midcore and even some hardcore players, they won`t go back or keep progressing in crafting, even if it was 450 red scrips per item, even without the weekly cap.
Honestly, you are not seeing the problem. Or if you do, you are totally ignoring it hoping we just "swallow" it.
The problem is not the turn ins, but the fact we are not having a progression system that rewards crafters and gatherers for what they do, but, just placing a completely uninspired weekly lookout in a pathetic attempt to kill omnicrafting. This is the complete opposite extreme of the masterbook II RNG based progression, just, with a timed gate instead an RNG one.
You need to find balance, you can`t RNG or time gate everything, when progression depends on random chance, or looks so far away it feels like you are not progressing at all, or looks like this red scrips, like very tight controled cheap experience, players stop having fun, this plagued the relic quest, this plagues raiding, and now the pest reached crafting. This is not fun anymore.
Honestly, this all feels like a very bad last week before the deadline idea of content for crafting in the expansion, the fact that every single item is just a recolored version of pre-existing items (and that the 1 star and 2 star gears are exactly the same thing with diferent numbers in the description)... Sounds like crafting wasn`t ready by 3.0, and in an attempt to deliver something, you guys killed the thing.
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QFT
As i did in this thread: http://forum.square-enix.com/ffxiv/t...ith-red-scrips...
Imagine and high end fight which DPS-Healing check is so hard, even BiS characters doing perfect rotations can`t beat it. Does it solve the problem if SE increases the drop of tomestones to get raid gear? That`s what happening here.