(Don't) Love the Skin You're In

One allowance here buys 154,140 EXP, which places it 3rd of the 3 Lv 52 Leatherworker tradecraft leves that record EXP. The best of them, Maybe He's a Lion, returns 480,670 EXP for the same allowance, 212% more.

Across that rung the return runs from 154,140 EXP to 480,670 EXP per allowance — 3 distinct figures spanning 212%, so the wrong pick leaves 326,530 EXP of the allowance unspent.

On whether to wait: the best Lv 54 Leatherworker tradecraft leve returns 560,140 EXP per allowance, 17% more than the best on this rung, while the Lv 50 rung behind tops out at 334,080 EXP.

At Lv 52 this data holds 54 leves paying EXP across 3 categories: the 24 Tradecraft ones average 337,743 EXP per allowance, the 3 Fieldcraft ones 868,208 EXP and the 27 Grand Company ones 177,755 EXP, which puts this leve 54% below its own category's average.

Wyvernskin Cuffs of Aiming ×1 is a Lv 52 Leatherworker recipe, 3 steps deep through 5 intermediates, costing 19 units of raw material and 19 crystals.

Handing that in returns 8,113 EXP and 14 gil for every unit of raw material the order swallows, and the tree needs Goldsmith, Leatherworker and Weaver.

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 462,420 EXP and 810 gil for the 1 allowance it costs, or 462,420 EXP per allowance.