Grips of Fear
Location
Required Items
Rewards
What the allowance actually buys
One allowance here buys 1,503,270 EXP, the best of the 2 Lv 86 Leatherworker tradecraft leves that record EXP: the runner-up manages 1,443,780 EXP, 4% less.
On whether to wait: the best Lv 88 Leatherworker tradecraft leve returns 1,703,250 EXP per allowance, 13% more than the best on this rung, while the Lv 84 rung behind tops out at 1,725,980 EXP.
At Lv 86 this data holds 18 leves paying EXP across 2 categories: the 16 Tradecraft ones average 1,557,007 EXP per allowance, the 2 Fieldcraft ones 2,953,920 EXP, which puts this leve 3% below its own category's average.
Gil ranks it differently: 4,980 gil per allowance is 2nd of 2 on the same rung against 1st on EXP, with the best there paying 5,000 gil.
Kumbhiraskin Gloves of the Black Griffin ×1 is a Lv 86 Leatherworker recipe, 2 steps deep through 4 intermediates, costing 26 units of raw material and 56 crystals.
Handing that in returns 57,818 EXP and 192 gil for every unit of raw material the order swallows, and the tree needs Alchemist, Blacksmith and Leatherworker.