Crafty Concoctions
Location
Required Items
Rewards
What the allowance actually buys
One allowance here buys 498,820 EXP, which places it 3rd of the 3 Lv 76 Alchemist tradecraft leves that record EXP. The best of them, A Greater Grimoire, returns 1,087,990 EXP for the same allowance, 118% more.
Across that rung the return runs from 498,820 EXP to 1,087,990 EXP per allowance — 3 distinct figures spanning 118%, so the wrong pick leaves 589,170 EXP of the allowance unspent.
On whether to wait: the best Lv 78 Alchemist tradecraft leve returns 1,201,060 EXP per allowance, 10% more than the best on this rung, while the Lv 74 rung behind tops out at 937,250 EXP.
At Lv 76 this data holds 27 leves paying EXP across 2 categories: the 24 Tradecraft ones average 754,791 EXP per allowance, the 3 Fieldcraft ones 1,812,275 EXP, which puts this leve 34% below its own category's average.
Commanding Craftsman's Syrup ×3 is a Lv 77 Alchemist recipe, a single step, costing 7 units of raw material and 14 crystals.
Handing that in returns 71,260 EXP and 237 gil for every unit of raw material the order swallows.
The record carries a repeats value of 2. This site reads that as 2 further turn-ins on the same leve — an assumption, because the source data defines no meaning for the field — which would put the ceiling at 1,496,460 EXP and 4,971 gil for the 1 allowance it costs, or 1,496,460 EXP per allowance.