Adhesive of Antipathy
Location
Required Items
Rewards
What the allowance actually buys
One allowance here buys 647,060 EXP, the best of the 3 Lv 54 Alchemist tradecraft leves that record EXP: the runner-up manages 473,220 EXP, 27% less.
Across that rung the return runs from 256,810 EXP to 647,060 EXP per allowance — 3 distinct figures spanning 152%, so the wrong pick leaves 390,250 EXP of the allowance unspent.
On whether to wait: the best Lv 56 Alchemist tradecraft leve returns 534,960 EXP per allowance, 17% less than the best on this rung, while the Lv 52 rung behind tops out at 480,670 EXP.
At Lv 54 this data holds 54 leves paying EXP across 3 categories: the 24 Tradecraft ones average 400,590 EXP per allowance, the 3 Fieldcraft ones 938,680 EXP and the 27 Grand Company ones 205,186 EXP, which puts this leve 62% above its own category's average.
Wing Glue ×1 is a Lv 55 Alchemist recipe, a single step, costing 7 units of raw material and 4 crystals.
Handing that in returns 92,437 EXP and 134 gil for every unit of raw material the order swallows.