The Writing Is Not on the Wall
Location
Required Items
Rewards
What the allowance actually buys
One allowance here buys 17,120 EXP, which places it 4th of the 6 Lv 20 Alchemist tradecraft leves that record EXP. The best of them, Everything Is Impossible, returns 21,600 EXP for the same allowance, 26% more.
Across that rung the return runs from 7,710 EXP to 21,600 EXP per allowance — 4 distinct figures spanning 180%, so the wrong pick leaves 13,890 EXP of the allowance unspent.
On whether to wait: the best Lv 25 Alchemist tradecraft leve returns 43,600 EXP per allowance, 102% more than the best on this rung, while the Lv 15 rung behind tops out at 22,790 EXP.
At Lv 20 this data holds 52 leves paying EXP across 2 categories: the 48 Tradecraft ones average 17,352 EXP per allowance, the 4 Fieldcraft ones 113,304 EXP, which puts this leve 1% below its own category's average.
Gil ranks it differently: 485 gil per allowance is 1st of 6 on the same rung against 4th on EXP, with the best there paying 485 gil.
Enchanted Silver Ink ×1 is a Lv 23 Alchemist recipe, a single step, costing 3 units of raw material and 2 crystals.
Handing that in returns 5,707 EXP and 162 gil for every unit of raw material the order swallows.