The Wyvern of It (L)

At 10 allowances a run, this leve's 2,643,720 EXP works out to 264,372 EXP per allowance, the best of the 3 Lv 52 Leatherworker Grand Company leves that record EXP: the runner-up manages 136,741 EXP, 48% less.

Across that rung the return runs from 25,691 EXP to 264,372 EXP per allowance — 3 distinct figures spanning 929%, so the wrong pick leaves 238,681 EXP of the allowance unspent.

On whether to wait: the best Lv 54 Leatherworker Grand Company leve returns 308,078 EXP per allowance, 17% more than the best on this rung, while the Lv 50 rung behind tops out at 183,748 EXP.

At Lv 52 this data holds 54 leves paying EXP across 3 categories: the 27 Grand Company ones average 177,755 EXP per allowance, the 3 Fieldcraft ones 868,208 EXP and the 24 Tradecraft ones 337,743 EXP, which puts this leve 49% above its own category's average.

Wyvernskin Mane of Fending ×3 is a Lv 53 Leatherworker recipe, 3 steps deep through 3 intermediates, costing 60 units of raw material and 87 crystals over 3 crafts.

Handing that in returns 44,062 EXP and 68 gil for every unit of raw material the order swallows, and the tree needs Goldsmith and Leatherworker.