At Your Neck and Call

One allowance here buys 387,820 EXP, which places it 3rd of the 3 Lv 74 Leatherworker tradecraft leves that record EXP. The best of them, A Heady Endeavor, returns 937,250 EXP for the same allowance, 142% more.

Across that rung the return runs from 387,820 EXP to 937,250 EXP per allowance — 3 distinct figures spanning 142%, so the wrong pick leaves 549,430 EXP of the allowance unspent.

On whether to wait: the best Lv 76 Leatherworker tradecraft leve returns 1,425,640 EXP per allowance, 52% more than the best on this rung, while the Lv 72 rung behind tops out at 826,240 EXP.

At Lv 74 this data holds 27 leves paying EXP across 2 categories: the 24 Tradecraft ones average 514,135 EXP per allowance, the 3 Fieldcraft ones 1,574,264 EXP, which puts this leve 25% below its own category's average.

Atrociraptorskin Necklace of Aiming ×1 is a Lv 75 Leatherworker recipe, 3 steps deep through 5 intermediates, costing 19 units of raw material and 42 crystals.

Handing that in returns 20,412 EXP and 62 gil for every unit of raw material the order swallows, and the tree needs Alchemist, Goldsmith and Leatherworker.

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 1,163,460 EXP and 3,525 gil for the 1 allowance it costs, or 1,163,460 EXP per allowance.